Ok, so after some more research, this is what i'm thinking:
I would like to be able to use this system to introduce me to overclocking, so i probably won't push it too hard (although i'm not exactly sure whats acheivable), as i'm inexperienced, and i want it to last 2 - 3 years.
- Gone for a P5Q-E as i dont really understand what benefits the P5Q would actually give me other than features i probably wont use.
- Chose 1066MHz RAM, it's C6 rather than C5, i dont think it will make too much difference.
- I think the 650W power supply is probably a bit more powerful than i need, (i'm running the 4850 on a 500W supply atm) but i'd like enough headroom to be able to upgrade to another single card solution in future (at least a year from now, assuming PCI-E is still a viable platform)
So, the things i'm still debating are:
If I assume I won't want to upgrade for say 18 months - 2 years, should i take the gaming performance hit of the quad now, in the hope games make more use of them in future?
- I can't really afford a Q9XXX Quad at the moment, so my only option would be the Q6600, which has a much lower clock.
Can i get away with a lower wattage PSU and still be able to upgrade the graphics card in future?
Is it worth getting faster (C5) RAM?
Is the performance boost from RAID 0 worth the cost of the second hard drive? (i only really need 1, but 500Gb seems like a good price per unit storage atm)
Sorry if this all seems a bit trivial, it's just that most of the info i've read on these boards seems very short-term focused, whereas i'm not planning on doing a complete system overhaul for another couple of years