I have used both OctaMED v4 and Soundstudio. Soundstudio usually pops up a message if you want to load samples into fastram instead...Well, I could have sworn it did.

Its been 4 years since I last used it, but I do remember that message.
v4 Automadically used your fastram first before it tipped over to the chip ram.
Either way, it should be able to do much more then that. :-D