I've got £600.00 to spend on a new PC. I've got a decent case and HD's but need to replaced the rest. Can anyone advise on the following:-

Nvidia 680i mobo
650W PSU
4Gb RAM
Intel Quad 2.66
Geforce 9800GTX 512 (Can always SLi later)

Help!

i would say stay away from nvidia chipsets they run hot and there is a problem with SATA and data loss go with a board with an intel chipset

I had a 680i and never had an issue with it. The data loss that I had read about was more likely on the 790i, not the 680/780, I believe.

If you want nVidia, you have to go with those options, but if you have been reading recently, ATI has been killing them in the mid/high end graphics market.

Get a P45, or and X48 (or X38 - no PCIE 2.0) and get the 4850 or 4870 (be careful - needs a ton of power - 2 6 pin connectors).

You should be happy with an ATI GPU right now and for a good way into the future, I believe (with the options to cross fire if you get the X48/X38).

Brilliant, but will I be able to get this within budget?

Dont really see the logic in getting a P45 board when most times in a review the better P35 boards perform as well and some times better.
A quad may be of use in future or if you play games you know to perform well with a quad or made for them.
Ati is on a high at the moment and i couldnt look elsewhere at the min.

Mactronix

Perhaps

x48: ~ £140 - 150
4gb ddr2 ram: ~£80-100
4870: ~£180-220 (ebuyer.co.uk has them for 180)
q6600: ~£115
PSU : ~£70

You should be able to get the above for a little under 600. If you can stretch just a tiny bit over the 600 get a good cooler to oc your cpu. As for PSU get at least 750w incase you want to go crossfire later.

well for a start the p35's not got PCI Express 2.0 for 6x6 crossfire

Sounds good, i'll take note on the PSU. Thanks.