Hello All, I am presently running Win XP on an AMD K6-III 400MHZ CPU in a PCChips motherboard. I am having some problems, which I attribute to the aged BIOS and the glacial speeds, even though for most things it still runs amazingly well. That being said I want to upgrade and need to keep the price low. I like AMD, both the chips and company, even though the higher ups need to get a kick in the pants for letting Intel back in by their poor performance. I am therefore looking to upgrade to an AMD CPU, anything from and Athlon 64 to and Athlon 64 X2. I see that I can upgrade to either a 939 or an AM2 motherboard, which is the better choice. Upgrading the new board is not an issue, later this year I expect to have much more $ and will be able to buy way up the line. For right now I need to go inexpensive. On Newegg AM2's start around $47 and go to about $250, 939's start around $57 and go from there. Are the cheaper AM2's as good or better than the slightly more expensive 939's? I see that the AM2's seem to need DDR-800 vs. the 939's DDR-400, will this be a major issue? Basically I would like your opinions as to the best combination of CPU and MB/Memory etc. for the buck.