My name is Adam and I too am responding from a Windows Vista laptop - and hating it.
Might I suggest something a little out of left field?
Like many a would-be nerd I limped along with self-refurbished machines thrown out by friends and the office where I worked. Then I settled down to build my best computer.
The process was slightly tense as parts came from various suppliers and the responsibility for fitting them together was entirely mine. Also, some aspects of the specification were subject to potential improvement in the gap between ordering and delivery - so fast was the pace of development.
I ended up with a potentially very good Windows XP machine in a lovely case - with huge scope for expansion. That said, I suspect that any uber-nerd could/would have ripped it to shreds but I was happy enough.
When the urge later came to upgrade - memory had changed, high capacity hard discs were now, in the main, serial ATA and video cards no longer fitted in the slots on my motherboard. With luck, I had a nice case and an over-specified power supply.
While I was living in France I ordered a Dell XPS 2710 all-in-one desktop machine - in part as a result of being impressed by the form factor of my niece's iMac.
This proved to be, and has remained, the most satisfying computer I have owned. Such a device would remove your need to bury the gubbins in your cupboard - which could be reserved for NAS, router, etc.
But there's more.
On the very first night the fresh from factory PC connected to the internet and started updating Windows and drivers. The unfortunate result of this was ----- a completely unresponsive brick in the morning.
I thought I was well buggered and wasn't all that delighted with the manufacturer. Skyped Dell Support and they entirely turned the situation around. The technician knew the machine inside out, was calm and logical. He got the machine going and then asked to take remote control - continuing to check all the important parameters and update or change all drivers and potential areas of conflict.
Yes, I was annoyed, upset and disappointed that things started so badly but Dell sorted things out - I know the importance of attempting to leave the customer more than satisfied from my time as Customer Services at Naim.
But that's not all.
Microsoft's recent kind offer of Win10 (Anniversary) update actually broke the motherboard - necessitating an out-of-guarantee replacement from Dell - and a wind back to 8.1. For the money I could buy a laptop but I like this machine and know that any PC will regain its original swiftness - if restored to its original state.
I don't feel that any intervening developments offer a must-have improvement 'for the uses I put the machine to' - Word, Outlook, audio playback, Photoshop (with Google NIK among others) and very basic video editing. It still responds quickly enough to prevent me mashing the OK button impatiently while the machine 'thinks about it'.
As if that weren't enough (!)
Short story - the repair didn't complete and ended up with the machine defaulting back to booting from the hard drive - and re-buggering the new motherboard. You might imagine how calmly I greeted this. I explained the problem to Dell.
Dell have just picked up the machine, are transporting it to Germany, will re-build and install Win 8.1 and all drivers and return the machine to me. Hell - I'd pay the repair cost to go on that trip as a holiday.
Why might this be relevant to your brave choice to build your own?
1: You don't know enough about computers and the subtle interactions between components to guarantee maximum outlay is rewarded with maximum performance.
In a list of desirables for a car one might list: V12 engine, 4-wheel drive, off-road capability, estate car load carrying, etc and end up with the subtraction of all parts.
Maximising the performance of a system requires specific knowledge of how the parts interact. Your processor may be the best you could specify but are you feeding it all it could handle? Do the hard drive cache, RAM, etc talk to each other in the most efficient way? (OK - I'm not very knowledgeable here). Sometimes it might be better to buy something that has been refined - rather than a one-off, theoretically best, configuration.
2: Support. I've built my own machines and got old dog PCs from skips to limp along. I'm presently very, very glad to hand the problem back to the manufacturer and find that they continue to support a model from several years ago - does that sound familiar?
But stop - there's less.
The machine I'd suggest you, at least, consider would (be) have been - http://www.dell.com/uk/p/xps-27-2720-aio/pd but, typically, it isn't presently available!
There are quite tasty 24" versions available - http://www.dell.com/uk/p/inspi...inspiron-24-7459-aio. I've just got used to 27" and like it.
I could easily live without the touch screen although I had thought to re-purpose the whole machine later as a music player with JRiver.
So - just a thought.
Immediate update - the 27" model won't be available for sale. But, perhaps, some points still remain valid. Or not.