Omni has slick Cryptologic software that allows multi-player gaming on Blackjack and other games. I've been impressed by their friendly staff and quick turnaround on cash-ins. Bonuses are credited instantly.
My one cash-in with them was in my paypal account within two days - very good! These days I would use NETeller instead since paypal is no longer an option.
Omni was recently voted "Best Online Casino 2004" by the readers of Casino Player Magazine.
Deposit $0 to get a $100 bonus.