Yeah, some places reek of pretentiousness, while others (times I've been to Lounge and Brown Alley) have had a very laxed, almost Cuba St studenty type feel to them.
If you're planning a night out of club hoping, you need to get yourself on the guest list for lots of places or you simply won't get in the door. 161, Revolver, Q-Bar, Tilt, 2 Floors Up even Brown Alley as some of the gigs they don't do tickets, but you email the people putting on the gig and get on the list and you usually save yourself some coin and any hassles too.
TOOL TONIGHT!!! With Shapeshifter playing support so rumour has it!