MOTM

Sound Workshop Stereo Reverb Model 242:

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=311795011

Master Room XL212 Spring Reverb with EQ:

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=314812513

Both of these are "classic" spring reverbs that are above average quality.  I 
haven't used the Sound Workshop reverb but their other products were 
well-made.  The MasterRoom stuff is nice although this is at the lower end of 
their product range.

Ivan