Currently I have the following from Dive Rite - Sidewinder Primary (400ft #24?), standard safety reel about 125 on it, sidewinder jump gap reel I think 75 ft on it. Primary is for OW Nav, S&R, and Wreck pentration. Safety reel for smaller nav runs when I don;t want to take the big one. Gap reel for SMB use. I'm replacing two of them with Manta's. The Big reel is being replaced by the Manta CR1. Gap reel by the Nano. I also have a Nano + that may agument the safety reel and for student use. The gap reel is getting replaced cause I'm tired of gluing the damn spool back together. I think I got it this time with glue and soldering iron. The big reel simply because I got great deal on the CR1 and it's loaded with #36 line that is a bit heavier and better IMO for wrecks. I'm also considering carrying them in my web store. The Dive Rites will be going up for sale after the first of the year.
I also have around 5 finger spools with anywhere from 50 to 150 feet of line on them for when I just don't need to take a reel. I always have a line of some type though. Makes it possible to salvage a dive even in zero vis.