X2 for Ebay, you can even get Ae Ae seeds on there
(just kidding, I have seen some good deals on Ebay)
Might I suggest bananas.org (if you haven't already). I think it is a fantastic site.
If I recall I originally used Greenearth. Had no problems.
Now I am out of room. But when I do need a plant or have the opportunity for a new plant a nearby member has kept me well stocked. Which as always I am grateful.