Hi there, I'm Hamza and I'm new to the forums. I plan on building my 1st ever gaming PC, hopefully finished by Christmas 
For the whole system I have a total of £900, and was planning to use £700 towards the Base Unit. I have come up With this system so far.
GPU: Sapphire HD4870X2 2GB (£300)
CPU: Intel Q6600 or Intel QX6700 (£120 or £160)
RAM: OCZ 4GB PC2-8000 Platinum XTC 1000MHZ (£40)
HDD: Samsung HD502IJ SpinPoint F1 500GB Hard Drive (£40)
Disc Drive: Samsung DL/DVD RW with Lightscribe (£15)
PSU: OCZ 780W ModXStream Modular PSU (£60)
MOBO: I dont Know !!
Case: Antec 900 or Thermaltake Armor MX VH8000BWS Black (£70-£100)
Total so Far £645-£715
I have a couple of questions which I'm hoping you experts can answer
Can someone suggest a CHEAP motherboard that is compatible with those parts, i.e Crossfire, LGA775, 1000 MHZ Ram etc please?
Will a 4870X2 even fit inside an Antec 900 (Taking in mind that this will be my 1st build so tight fits might be difficult for me) and which case is better for cooling ?
Is it worth shelling out the extra £40 for the QX6700 (Taking in mind that I do plan to overclock A LITTLE) ?
Thanks for reading, and reply soon please. If I've made a silly mistake somewhere or asked a dumb question, please remember that I am VERY new to this and would appreciate some guidance

For the whole system I have a total of £900, and was planning to use £700 towards the Base Unit. I have come up With this system so far.
GPU: Sapphire HD4870X2 2GB (£300)
CPU: Intel Q6600 or Intel QX6700 (£120 or £160)
RAM: OCZ 4GB PC2-8000 Platinum XTC 1000MHZ (£40)
HDD: Samsung HD502IJ SpinPoint F1 500GB Hard Drive (£40)
Disc Drive: Samsung DL/DVD RW with Lightscribe (£15)
PSU: OCZ 780W ModXStream Modular PSU (£60)
MOBO: I dont Know !!
Case: Antec 900 or Thermaltake Armor MX VH8000BWS Black (£70-£100)
Total so Far £645-£715

I have a couple of questions which I'm hoping you experts can answer

Can someone suggest a CHEAP motherboard that is compatible with those parts, i.e Crossfire, LGA775, 1000 MHZ Ram etc please?
Will a 4870X2 even fit inside an Antec 900 (Taking in mind that this will be my 1st build so tight fits might be difficult for me) and which case is better for cooling ?
Is it worth shelling out the extra £40 for the QX6700 (Taking in mind that I do plan to overclock A LITTLE) ?
Thanks for reading, and reply soon please. If I've made a silly mistake somewhere or asked a dumb question, please remember that I am VERY new to this and would appreciate some guidance
