Bought a tank, looking to start reefing.

Hello,

I'm obviously new to the aquarium scene, but I've been doing some
reading while at work, and it's gotten me pretty excited about the
whole ordeal.

I'm wondering what is going to be needed/recommeded in order to get a
good small reef going?
I just purchased a 30 gallon acrylic hex aquarium, and plan on getting
a RO/DI unit and protein skimmer. My boss recomended a Marineland
Emperor 280 (he has a 400 series) filter with a biowheel, which seems
to be pretty good. Im going to be ordering some LS and LR (cured fiji)
online, and probably going to get 2 clownfish to start.

What else would be needed to get this tank going?

I hear alot about power heads and stuff but I'm not quite sure what all
of this means.
I plan on going out to get a sal****er aquarium book before I do
anything, but I'd like some insite from the "experts" here on google.
^_^

Please, send post some insite!
I'd love to hear from all of you in order to make my sal****er
experience the best possible, and hopefully a enjoyable hobby for me
and my fiance. (she's excited to name the fish!)

Thanks,
Mike