I'm posting more links.Some are good,some are just ok.But I'm posting quite a few.Theres loads more info out there I'm sure.But trying to help you out (& anyone else) I'm researching more myself
<-Fat tailed gecko. Don't go into detail much @ all.
<-western banded gecko. never heard of it as a pet??
<-has info,supplies,list of species of geckoes + link recommendations!!
Global Gecko Association
<-I just found this site earlier today.My fave so far.Care sheets on many geckoes ...using the common name& scientific (latin?) name...also good to search for the least common name when getting an animal as well.Because even though some look similar,always great to know for sure.
I think you'll really like this site.Has gecko sounds as well.Very cute.
The last 2 links,by far my favorites.
Keep researching though.Can never research too much.Hope I helped at least a tiny bit.
[EDiT: to add] I wouldn't recommend using a heat rock btw.They tend to get very hot & burn animals.
Under tank heaters are good,have it so it doesnt cover the entire bottom of the terrarium so that the gecko can have a warm side & a slightly cooler side to it's habitat.
There's lots of substrates available,but research those as well.Some can seriously cause problems with geckoes.