Amunet
Fish Aficionado
If you don't want a betta... you could always try guppies. They come in all different colors and are the most curious fish, plus they stay small so you could have a few in there with no problem 
It sounds like you're probably not gonna wait for your tank to cycle before you get fish.
You're just gonna have to do daily or every other day 10-20% water changes (with dechlorinated water) to help keep the toxins down so your fish don't get too stressed.
You should also think about getting a master test kit.
And etc etc.... sounds like you're willing to spend some money on this great hobby. Just be prepared to spend more than you wanted
heh
It sounds like you're probably not gonna wait for your tank to cycle before you get fish.
You're just gonna have to do daily or every other day 10-20% water changes (with dechlorinated water) to help keep the toxins down so your fish don't get too stressed.
You should also think about getting a master test kit.
And etc etc.... sounds like you're willing to spend some money on this great hobby. Just be prepared to spend more than you wanted