[sdtPikachu]

A celeron is fine if you're just gonna be surfing the net and stuff like that. Celerons are basically just Pentium 2/3/4's with most of the onboard cache removed, which makes them much cheaper but slightly slower, and rubbish for apps which need lots of memory to do fast operations.

And yeah, OEM computers do suck. I refuse to use them now, since I know I can get one ten times better for 2/3 the price. And if you know where to look, you can get cheap deals on stuff like Windows (ugh).

just to clear up an issue;

DDR-RAM is essentially the same stuff as SDRAM (it's properly referred to as "DDR-SDRAM"), it's just clocked higher, hence the "double data rate". RAMBUS allows much higher memory bandwidth than DDR (which in turn allows more memory bandwidth than plain SDRAM), but it more expensive, patent-encumbered (which is why you don't get it for AMD chips, since VIA won't pay the licensing fees to the RAMBUS people) and impossible to upgrade. If you demand the highest benchmark scores available, go with RAMBUS. If a usable and upgradable PC is more your thing, stick with DDR. Less headpain will ensue.