check local area dealers and even craigslist has some that are cheap and in relative new condition. Just gotta look around. I'd say check out your local craigslist for anything you may like and check if you got a 4lug wheel. I know some people that have gotten pretty new rims in damn near perfect condition and semi wore in tires for 400. Just gotta look around.
Cooljay's Black 2007 Pontiac G5 Base AkA Black Knight
Injen CAI, DC Sports Catback, Interior Trim painted red, 3 Gauge A pillar, Eibach Pro Springs, SS High Rise Wing with CF Center, Painted Rear Drums and Front Calipers, MSW Type 11's 17x7's On Kumho's.
To come: DC Sports Strut tower bar, Body Kit, CF Hood, Turbo, Halo Headlights, 17inc Foraged Rims, Front drilled and Slotted Rotors, SS Struts, Comp. Kickers.