As far as RAM, no way to do that. The files are my backups from WHDload and other system things. Some as large a 1GB. I only have 256MB of free ram 
Well then.

I recently downloaded one of those "WHDLoad game packs". All said and done it's something like 3.78GB. I was wondering how I'd get it over to my Miggy then I thought about it, I'll just keep the whole thing on a USB drive and run the games straight from there. Easier for me, and Poseidon seems to have no problems recognizing my 16GB USB drive, haha.

This might be a good test though - can you remove some of the stuff and make a file about 200MB, and transfer to RAM:? If a file that large transfers okay to memory but not to hard drive that might help you troubleshoot the source of the problem.