I won't waffle. I'm trying to decide whether to build a computer from scratch or just buy an x51 (Alienware) miniature gaming desktop. If I were to go with the x51 I would buy the mid-range version ( http://www.dell.com/...d=alienware-x51 ).
However, a truck-load of people are saying "oh no, don't get alienware. you can make a 2x better machine for half the price."
The following are the components I have found and liked so far.
PSU:
CPU: http://www.ebuyer.com/product/251596
MOBO: http://www.ebuyer.com/product/276562
RAM: http://www.ebuyer.com/product/147903 (Already have 2 sticks that I can also shove in there.)
GPU: http://www.ebuyer.com/product/267865
HDD: http://www.ebuyer.com/product/272944
Optical Drive: http://www.ebuyer.com/product/176026
Operating System: http://www.ebuyer.com/product/259863
Case: http://www.ebuyer.com/product/172779
It comes to a total of about £675 ($1,046) with the alternative (x51) coming in at about £839 ($1,303). Prices include shipping & delivery.
I need to know if there's anything in the list that won't fit, will blow up, break other components, might come alive and kill me while I sleep, you know. Is the case big enough? All the questions a newbie might ask, I need answering.
Obviously the specs for the custom-built PC are in the links but below are the specifications for the x51 I would buy.

Which CPU is better? Which GPU is better?
I'm not a heavy gamer but it would be nice to play games like BF3 (obviously) on above average graphics.
Any advice/help would be very much appreciated.
Thanks,
Ryan.