what kind of sounds do you need? if subtractive synthesis will do it for you, i suggest you try out something analog. you will probably be surprised by how different the workflow is, even compared to hardware digital. i find on analog boards i'm always "trimming the fat", making things smaller so they fit, where on digital, if a patch sounds small, it gets lost, and if you try and fatten it up, it gets ugly (obviously not EVERY patch, just a trend i've noticed). Alesis andromeda, studio electronics omega, dave smith poly evolver, jomox sunsyn... they'll all give you something you can't experience on digital, might be worth looking into.
best of luck
p.s. the voyager mentioned above is amazing, but, not the type of board that would be useful for more than just 1 or 2 tracks in a mix, where the others i mentioned could probably take care of half your mix or more.