I'm the proud owner of a used Jukebox studio 20. I'm planning to upgrade to a larger drive, and I had a few questions. The links I've seen say that I need a 2.5" EIDE hard drive. I'm pretty sure that ATA drives are backward compatable, but I want to be sure before I buy one. Also, can I just start with Rockbox as my firmware, or do I have to install the original Archos firmware then upgrade to Rockbox? Also, any reccomendations on HD models people have been happy with would be appreciated. Thanks!