I've always gone to Dodakin's on the corner of Beacon & Park near Porter. I love the fact that they don't do repairs, so they have no financial incentive to fail me. (They're a used car dealer, not a garage.)

I come from a state where inspections are all done ("free") by state-run facilities, so the idea of paying a mechanic to inspect my car when he's the one who gains from my failing has always sort of bothered me.

ps - They've also cheerfully never given me grief for consistently (five years in a row, now... which reminds me: I've done it again, so make that six!) coming in a month or two after my previous sticker expired.