IMHO you should keep souch a nice machine with yourself... My Minimig has exactly the same configuration as yours, and I'd never part with it for a Linux-based console. Don't take me wrong, I use Linux as my main daily OS (no Windows or Mac OSX **** is allowed in my home), but you won't find Amiga software emulation to be souch a good thing in a Pandora (or whatever hardware you use).
Your Minimig has nowadays excelent compatibility, awesome sound quality (check the latest developments in Minimig.net) and is compatible with hundreds of Whdload games... You won't get anything better in exchange.
