Sorry i never responded, i was away on business and i just got back...
Anyway, this server will be used for multiple websites, the one with around 200 users on it at a time will be a ladder site, mostly lots of forum usage, and tournament setups. So there is going to be A LOT of heavy mySQL queries, and PHP scripts running. I would also like to setup some image hosting for the users, and maybe Shoutcast so we can have a radio going on the weekends.
There will also be a few clients of mine, which some small shared hosting, and then a few private and more professional sites of mine. Some sites will have applications for various things, and others will have frequent ordering of producsts, using a link with paypal.
Finally, i would also like to use the server for CS:Source once in awhile. It will not be a 24/7 server, but i would like to use it for CS:Source once in a while.
So all this would be done on this one server, and i know i do not want to go with a desktop setup, im looking to go the AMD route with Opterons.
Dual-Core Opterons are out of my league, and ill settle for 2 Single Core Opterons, and then probably 2GB of RAM. I will start off with 2 x 250GB SATA II HDs, on a RAID 1 setup. Reliability is VERY important, i would like to have my data safe and secure. I will be making constant mySQL data backups of EVERYTHING, and occasional file backups as well.
The one thing i havnt fully decided on, is whether to co-locate the server, or connect it at my office. I thought it might be cool to have it at the office, and get a T1 or better internet connection. I used to be a home builder, and have many friends that work for companies like comcast, and other various internet providers, and i was planning on talking to them to see what they could arrange.
Basically, what kind of speeds would i be looking for, to have this server connected at my office. I already have a gas powered generator, so power loss will not be a problem. I just need to know what internet upstream speeds i should look for.
Also, since i will just have this setup in my office, i dont technically need a 1U server rackmount case, i could just go with a different ATX computer case, would that be a better choice as well?
I have all this stuff running through my head, and i just need to get it sorted out. I extremely appreciate all the help you have given me so far, and any more help just makes me more greatful. Thanks