ok, thanks for all the suggestions, I'll check and see what I can get more easily, here's what I'm considering
1. a group of multies
pros: Cool to watch, breed readily
cons: don't interact with the owner too much (from what I've heard), very territorial, tank looks empty with just them in it
2. a dwarf pike
pros: predatory, possibly highly personable
cons: can only have one in the tank, may get too large for a 29
3. A school of 10-20 red eyed/rummynose tetras with some otocinclus and cory cats
pros: personable (from what I've heard), multiple fish in it, easy to feed, tetras are somewhat predatory
cons: won't eat live fish like I'd want it to, more expensive to get everything, tank may not be large enough
4. Jack dempsey
pros: predatory, personality (from what I've heard)
cons: might get too big for the tank to be happy