hey man, i used mysql with omnihttpd, php4 on win 98se no problem running a fairly busy site. never had a problem, just had to restart it every morning let everything take a break. you should just get linux, its easy (well kinda, once you get past the inital headaches, fustrations, and anger), because its way more stable than windows, its alot faster, and its fun. it makes it feel more professional 🙂 oh and if you are gonna use linux, i suggest getting calderas openlinux server 3.11 (make sure you have a pentium 4 or amd anthlon+ cpu, its for i686), its got everything pre-configured (apache, mysql, php) right out of the box with a nice easy to use graphic install. so yeah, thats my $0.02. But if you are gonna use windows, use omnihttpd, it comes pretty much preconfigured to kick ass with php4 and mysql.