Shoutbox

Maybe you should do some research first.. That hardware is awfully outdated..

Here's a brief (like a sketch) list of what you should try to buy :

A good case, which provides good airflow (incase you want air cooling, if we're talking about water cooling, it's an whole different matter) and similar construction quality..
Examples of good brands are Lian Li and Silverstone

Next, a good power supply.. Power Supplies aren't all about Watts. You should revise how many Amps. they got on the 12V line and how many rails they've got in each line (the more amps. the better, and the fewer rails the better). Good brands when it comes to PSUs are Corsair, OCZ etc..

Now, Motherboard.. Try getting the new DFI Infinity P965-S Dark, it is said to be stable and to have good Overclock abilities..  It features the P965 Intel Chipset, thus it won't support SLI in any way, but you surely don't want that, I guess. If you don't want to risk your way into DFI, go straight to Asus, they've just released a brand of motherboards dedicated to Windows Vista, one of which actually features onboard flash memory (need to confirm this), which boosts the "Vista Experience", through Vista ReadyBoost technology

Then, CPU.. Try to get an Intel Core 2 Duo E6600.. With the come of new Conroes, the E6600 has dropped price (something like 260 Euros; now, a while back it was 340 Euros).. It really is a great processor, not a toaster like P4 and a great overclocker.
However, I recommend you getting an after market cpu heatsink, like Tuniq Tower 120 (which tops all air cooling heatsinks), since the Stock Intel heatsink sucks (as usual).

Then, graphics card.. Tomorrow (April 17th), there will be available the new mid-range DirectX10 video cards (8600 GT & GTS), at really affordable prices.. Buying anything else besides nVidia 8xxx series right now is not a good idea.. Good video card brands are eVGA, XFX and so on..

As far as RAM is concerned, try to get 2 Gb at 400 Mhz (800 Mhz Effective) DDR2, with the lower timings possible.. Good brands are Team Elite, Corsair, Geil etc..

As for Hard Drives, try getting some SATA II (300 Mb/s transfer rate) drives.. You can get some cheap prices right now.. Look for low access time and 16 Mb cache, not 8 Mb.

Oh and the optical drives, buy one which Asus launched 2 months ago (Edir : Asus DRW-1814BLT DVD-RAM LightScribe), DVD-+RW, SATA and features lightscribe.. I don't think there's much need for two optical drives but if you think so, buy 2, they aren't really expensive