First forgive me, i'm doing as much reading as I can atm. I use a steam account with several games that i've purchased, inc. Garry's Mod 10, CS:S, HL2:DM, HL2:LC and TF2 . I want to get DoD:S, Portal, HL2, HL2:Ep1 and HL2:Ep2 working with Gmod, since I already own the Orange Box on both XBox360...