Beginer Frogs?

[Samba]

Hey all! Just thought I'd pop in and say hello! I will be attending a reptile expo this weekend (Mar. 22 & 23 - Howard Johnson's, Albuquerque, NM) and wanted to pick up some frogs. I've owned frogs in the past, but haven't for around 4 years now! So even though I 'was' experienced, I thought I'd ask your opinions on beginer frogs. I'm looking for something cute (like monkey frogs or dumpies) that's relatively personable and active. Preferably something that will sing, (the last frog I owned was the rare Coqui frog of Puerto Rico... even after keeping him for 2 years I wasn't allowed to bring him with me to the states! Oh yeah, the point... he used to sing me to sleep everynight =) I have a 20 gallon tank that I'm setting up today, and it's all done except live plants. In the past I used house plants, but I don't know the toxicology of them, and I don't wanna hurt the little guys. Any plant names that I could take to go to Rowlands and inquire about will help. Well, that's about it, I've done months of research on many species, and now I'm ready to pick up one or two more adorable munchkins for the family! Any last minute suggestions would be appreciated! Thanks in advance!