[direwolf74]

Just 20? Damn, tough question. Ok, I take it solo artists don't count, so here's my list of "bands" in no particular order. Just a warning though-- I may go a wee bit past 20.

The Hip
The Weakerthans (second best band on the planet. Trust me.)
Blue Rodeo
Headstones
The Lowest of the Low
Rheostatics
Blackie & the Rodeo Kings
Junkhouse
Sloan
The Watchmen
Skydiggers
54-40
Cowboy Junkies
Big Sugar
Weeping Tile (Sarah Harmer's old band)
Spirit of the West
The Odds
The Pursuit of Happiness
13 Engines
The Northern Pikes
The Bourbon Tabernacle Choir (featuring Chris Brown & Kate Fenner)
D.O.A.
The Grapes of Wrath
Treble Charger (back when they were actually good)
Doughboys (pop/punk before pop/punk became popular)
Eric's Trip
The Cash Brothers
The Mahones
Crash Vegas

whew....there's probably a whole bunch I'm missing, but there ya have it. The best of the best!