What are your stats? Are you all STR, DEX and CON? Do you have some WIS? maybe a cleric would suit you. Rogue sneak attacks are devastating on the right opponent. Dex ain't necessary if you have figher levels either IMO. Tumble and UMD are very potent skills.
Barbarian is very helpful though. Loads of yummy HP! Rage your a$$ off! It'll keep the BAB high too. (Base Attack Bonus) <img src="/ubbthreads/images/graemlins/up.gif" alt="" />
