Does anyone know where i can get some good quality pelco ptz cameras. I'm looking somewhere in the area of $500 a piece. Any websites would be greatly appreciated.

Ebay is an excellent place to start. Do a search for "pelco" on ebay's advanced search option. I have sold several on ebay. Just be careful what model you bid on and remember to get the complete 3 piece unit if available, the dome, backbox and housing.