i play guitar and im just looking for a cheap bass and amp to mess around on with a combined price of $500
Theres a list in the FAQ. My personal reccomendationg would be a Squier Deluxe Jazz V and a Kustom KBA16.
Squier VM bass the Precision and the Jazz are both great. If your looking for something a bit less "Fender-ish" you should probably check out an Ibanez GSR200. Amp wise I'd prolly go with and Orange Crush 35b, good tone is fairly loud (still not loud enough to jam with). If you think you are going to Jam with people alot, I would recomend stretching your budget a tad bit and go with a Acoustic B100 - it's a heck of a lot louder and doesn't break the bank.