I used Auto Cosmetic, apparently one of the more experienced ones in the GTA. Had it done thru Birchmount Collission (great guys!). I think I paid like $180 for 3 deep dings that I thought needed definite body repair. They will tell you if the dent/ding is too close to an edge or corner and PDR can't be done. 90% of dings is removable. Work was done in a few hours and looked like the panels weren't damaged at all.
2003 E39 354 Titansilber Metallic 530i
N6SW Schwarz Montana Leder
M Executive Package
BMW AG Sport Package