If you have Half-Life 2 or CounterStrike Source you should check this site out!
http://mappers-alliance.com/
It is a group of elite mappers that are making a boat load of maps for HL:2 and CS:S, they also have a server up that runs these maps 24/7 but it lacks in players so maybe a bunch of us can go a hit it up sometime if enough people have CS:S
Also if any of you have Gary's Mod 10 (which is a 10 dollar addon for source games) there is a whole stargate addon for it that gives you Zats, Staff Weapons, Asgaurd Transporter (I havent gotten it to work yet :P), Stargates and DHDs, ZPM, shield, Cloaks, Drones, rings and alot more... just thought it might interest you and I will post some screen shots of it later.
**Edit**
Took some cool screen shots of Garry's Mod with Stargate stuff in it, hope you guys like it :)
Just some geared guys calling guarding the gate.
Friendly visit from the Vortagrants :D
Just firing some drones through the old Orphous...
... at a battle cruiser!
And just some simple target practice ^^
These screen shots took like 10 min, so their not that great. I just wanted to show the cool stargate stuff in gmod.
**Edit**
And dont mind the blue error message box in the top right hand corner of the screen shots, it just means every things fine... I swear.