Picking Up The Bill On The First Date

This is always a really great topic to bring up at the table after everyone has been drinking for hours. I obviously have my own opinions on this subject, but I thought it would be a fun one to bring out here.

Given that a lot of people nowadays use Lavalife or one of the many other varieties of online dating services, what is the general opinion with regards to the guy picking up the bill on the first date? If you're a guy, is that cool with you? If you're a girl, would you pay your own portion? I know lots of girls who would openly admit they wouldn't go out on a second date without the guy picking up the tab on the first one.

Is that opportunistic, or just a slice of old-fashioned values?