I ride a Selle Italia SLK (Lady version, because I prefer a wider saddle). I've tried an SLR, but I really needed a cutout. I want to try out an SLC, but I can never find any cheap ones on eBay to try out. I also like the Specialized Toupe.

Pricepoint had (or still has?) the Fizik Arione, which is very popular, for $60 with free shipping right now.

But yea, it really depends on your butt. I prefer little to no padding, but some people like something a bit more robust. I prefer race type saddles, whereas some people prefer saddles like the Concor and Turbo. Some LBSs have saddle demo programs where you pay $xx and get some saddles to test out. When you find one you like, that $xx goes towards your new saddle purchase at their store.

What worked for me was buying and flipping used saddles on eBay until I found one I liked.