One big minus for us about living in an apartment is the lack of outdoor space for gardening. We like the thought of toiling the land and eating the fruits of our labor (literally), so we're all for any opportunity to bring edible plants indoors. Our local nursery has a variety of dwarf citrus plants, but if you're thinking of branching out a bit from there (oh the pun possibilities!), we've found a great article on other types of fruit plants that work well indoors.
For instance, did you know you can grow cinnamon and coffee plants? What a great way to leave a yummy smell in your home without resorting to an artificial fragrance or, you know, actually baking. Martha also gives advice on papaya and some citrus varieties, so there are lots of good tips to cull.