Jagr's a nice grab at $3. If I did it again, I'd probably grab Dryden at $2, and replace Hasek with Jagr.
Dryden was 500.6 goals above replacement in his career, which is pretty high on the all-time list.
Then you look at it on a per-60 basis, and it's nuts - Dryden was 1.28 goals better than replacement level, on average, over his career. Granted, he never faced the inevitable decline phase that all other goalies face, but here are the other four on the list:
Hasek: 711.8 goals above replacement, 1.00 per 60 minutes
Roy: 867.0 goals above replacement, 0.86 per 60 minutes
Brodeur: 664.5 goals above replacement, 0.54 per 60 minutes
Belfour: 537.0 goals above replacement, 0.58 per 60 minutes
(Caveat: note that this just takes into account save percentage, and not anything that goalies do to prevent shots - or to create their own team's shots).
This is also regular season. For playoffs:
Roy: 212.2 goals above replacement, 0.84 per 60
Hasek: 90.5 goals above replacement, 0.74 per 60
Brodeur: 119.2 goals above replacement, 0.56 per 60
Dryden: 103.7 goals above replacement, 0.91 per 60
Belfour: 121.0 goals above replacement, 0.73 per 60
Where Dryden looks pretty nice. There may be strength of schedule considerations involved (I've got schedule strength for all of these five guys except for Dryden).