Deemo- Glad to her you're getting a garage all set up the way you want it. Makes all the difference. I ASSUME your builder mad a provision for the sink's drain/hookup to sanitary, right? Just checking! If you run your hose from the sink's spigot(s), be sure to mount the sink/faucet/spigots so it doesn't interfere with your hose. If you can, a separate hose hookup plus the sink might be worth it (was for me).
bretfraz and Brad B. have REAL sinks

, but you'd be surprised how tough the plastic/fiberglass-reinforced are. Yeah, they DO look sorta crappy, though. Now I'm gonna have visions of a SS one stuck in the back of my mind!