Well, thanks a lot guys! I'm now addicted! I have been thinking of adding something new to my collection of one

but I need some advice. I have a ten gallon to fill. I am not sure what I want, but I am doing my research and looking around. I have come up with a few candidates and would like to get some pros and cons from you guys. I will try to wait for repticon in July, but I make no promises.
The first candidate would be Some sort of colubrid. I was thinking a trans-peco rat snake (baby) or maybe a corn snake. My only concern with this is I only have one VE-200 thermostat, and might not be able to afford another right away. So could I use one piece of heat cable to heat both tanks? They are 10 and 30 gal.
My second candidate is a pacman frog. I have loved these guys since I was a child. I wouldn't need any supplemental heat because the room I will have him in is always 75-80*F. My only concern with this is the local pet shops keep them in water only, and sometimes its to deep for them to stand. Will this effect the health of the frog?I was thinking of getting one online but I'm not sure how well they do in shipping.
My last candidate (for now) is a scorpion. I don't know which kind but I love the look of them and think they are fascinating creatures! Not many concerns I can think of here just need your opinion the good and bad of caring for them.