GLee, about the Calla Lilies being a funeral thing...it must be a regional thing because my family are good friends to a florist and they're a very common wedding flower as well. Heck, some guys consider a wedding as a pseudo-funeral, so maybe there's a connection here? :)
I would agree that roses are still #1 because they always will be, but of the 10 or so girls that I've dated fairly seriously, the bulk of them found it either sexy or sweet that I took the time to actually pick something out...besides taking the here, I'll buy some roses approach. It's kind of like how a sophisticated gal who appreciates wine is intrigued or attracted to a guy's understanding or being familiar with different wines. Shows a side of the guy I guess.
I've never done the internet flower delivery thing. I always buy them and deliver them myself because there could be immediate rewards. Also, I usually write something sappy or witty in the card and I like to see her reaction.