I LOVE crocs! I'm literally addicted to buying them on their website. I check every few days for new sales. For me, they're the most comfortable shoes I've ever owned. I like the loafer styles best. All of mine that are made of the standard Croc material dry fast. I have a few pairs in canvas which also dry rather quickly.
I never wear them while swimming so I can't answer that question. I know you said you were looking at the Croc RX models, but they also have a line that looks like water shoes - Waveseeker, which would probably be more appropriate for swimming.
If you do end up ordering any Crocs, I have the following promo codes for the Crocs website:
$10 off $50 purchase: code FALL10 good through Sept 30
$15 off $75 purchase: code FC12 good through Oct 3
free shipping code: SHIPCROCS - not sure how long this is good for, but I've used it twice already!
