What I tell people pretty regularly is to think about a bunny, long and hard.
I'm allergic to my bunny's hay and fur when she molts (sheds her whole coat twice a year) so think about that.
The cage in the pic you had is the size of my bunny's condo, anything smaller is not suitable. The pieces for the cage can be found at WalMart for 15$ per pack, a cage that size used about 4-5 packs (I think)
Don't buy store bought treats!!! They're full of sugar and seeds and things bunny shouldn't eat. www.rabbit.org
= Bunny owner's bible. Go there for healthy treat recipes!! I bake bunny treats for myself and 2 girls at my workplace :) They are healthy and you know what's gone into them.
Toys can be found in the baby and cat toy section of dollar stores. Cardboard, have lots of it on hand because bunny will chew!
Thrift stores have cheap fleece blankets and sheets for lining cages with.
You'll NEED to have a female spayed. Neutering is reccommended for males to control pee spraying. And in both sexes, fixing will eliminate BAD behaviors from hormones.
Please please please look into rescuing one. Stores buy their bunnies from mills where they are given inadequate care. Do not support that, especially since you'll receive terrible info on proper care and they'll likely give you a sick rabbit (or one with a compromised immune system). Plus, rescues will give you the option of fostering the rabbit first to see if it fits in with your family and lifestyle. AND most rescues spay/neuter ALL rabbits in their care.
Anything else, just ask me. I've only been studying and researching rabbits for the 5 and a half years of having them but I feel I have some knowledge I can share. A rabbit is no cute commitment either, most HATE to be handled and carried around (being prey animals) and they can live to be 10-12 years old.
edit- I just seen Olympia's post and actually the smaller the rabbit the higher energy it has!! SO a larger cage would be essential and more out of cage time!