I've got an old gary fisher bike; a 1999 kaitai I think
http://lumin.us/msr/forums/kaitai/katai_side.jpg
I want to take it in to a shop and get it all fixed up and maybe get some new tires. Any advice on what things I should get done to it to improve the performance or what tires are good? I primarily ride on the roads but also ride a little on some trails around nosehill. I've got about $500 to spend and basically want to make it indestructible. Going down curbs seems to be the most impact on the tires and I ride it pretty hard but don't want really beefy tires that slow me down a lot. Also; I know very little about bike tech. The bike is very well built so I don't want to get a new one.