the pc you have is over kill for a css server , what talrkin says is right the main things you will need is a decent upload speed and online storage for your maps and mods.
without online storage people will download the maps from your pc at a very slow speed
here is a guide i made on how to do a css server within windows xp im not sure about vista .
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Step by step instructions on making a dedicated counter strike source server on a windows xp platform.
1, download hlds update tool from hear (
http://www.steampowered.com/v/index....steamnow&cc=GB).
2,make a folder called HLServer in the root of c:\,
3, install the hlds update tool into the HLServer folder you just made,
4, type cmd into run and push return, in the cmd box type C:\HLServer then push return,
then type, hldsupdatetool.exe -command update -game "Counter-Strike Source" -dir C:\HLServer ,into the cmd box and push return ,SIT BACK AND RELAX THIS MIGHT TAKE A WHILE TO UPDATE.when the cmd box says HLDS instillation up to date quit the cmd box.
5, go here (
http://asylum-gameservers.com/cssource.php) and make your cfg, then click the get your cfg here tabb then file down and click the select all tab right click the cfg and copy to notepad name the notepad server.cfg and save it in the cstrike/cfg directory,
you can tweak the cfg in notepad if you want to.
6, Now go to the HLServer folder open it and right click on the srcds.exe and send to desktop.
7, right click the shortcut to srcds.exe and select properties,click the shortcut tab, remove what is in the target and type this "C:\HLServer\srcds.exe" -console -game cstrike -autoupdate +maxplayers 20 +map cs_italy .
PLEASE NOTE you need to replace the amount of players in the above with the amount of players your server can handle!
amount of players for your upload speed (a rough guide)
256 kbps 2-4 players,
384 kbps 4-8 players,
512 kbps 8-10 players,
768 kbps 12-18 players,
1,024kbps 20-24 players,
1,284 kbps 26-28 players,
1,512 kbps 30-32 players.
If you want more control over your server then go hear (
http://www.mani-admin-plugin.com/) full instructions are available on the website.
And finally if you want to add more maps simply download them put them into your cstrike map folder and wright them into the mapcycle.txt and maplist.txt.
there is some other things i can help help you with just post here or email me hope this helped.
