Hi Johnny I've always built my own pc's.
I'm sure others might chip in but I've always ordered my parts from Ebuyer.
So here are my recommendations
Motherboard:-
Asus M4A88T http://www.ebuyer.com/220150-asus-m4...board-m4a88t-m
Its an AM3 board, will take 16 gigs of DDR 3 ram, supports SATA 3 and comes with a better on-board graphics card ATI Radeon HD4250 bit more future proof than the current one you were looking at costs £60
CPU depends on what you want......
Quadcore AMD Athlon II X4 640 Socket AM3 3GHz 2MB L2 Cache Retail Boxed Processor £76
or something a bit cheaper
AMD Phenom II X2 555 Black Edition 3.2GHz Socket AM3 6MB Cache Retail Boxed Processor £68
If you prefer gaming then go for the quad if you dont really play games then go for the cheaper dualcore as it wont matter most applications dont need quadcore although I found I needed at least a quadcore to play Black ops on my pc.
Memory.....its cheap as chips now so get it as soon as before it goes back up....
8 gigs might be over kill but its there and its cheap....
Corsair 8GB (2x4GB) DDR3 1333MHz XMS3 Memory Kit CL9 1.5V unbuffered £30 (I use this ram 1600mhz version but can vouch for it)
Or if you want to save money
4 gigs of Corsair 4GB (2x2GB) DDR3 1333MHz Memory Kit Unbuffered CL9. £20
So I'll just round it all up for you.
Asus M4A88T mobo
AMD 640 x4 3ghz
8 gig of ram
Total cost = £166
Bit cheaper version
Asus M4A88T
AMD x2 555
4 gig of ram
Total = £148 or £158 with 8 gig of ram
hope this helps....I find motherboard bundles to always cost more than buying up the parts seperate