Firstly, thanks for the hook up, Ziggy. Not having to wait on a package from Japan is grand.
I spent a good deal of time last night using the SGB2. I like the additional borders that they included however I'm pretty partial to the original ones. Thankfully you can input a code to switch to the original choices.
Also, I got the power supply I referenced in my last post. It is incredibly light weight but seems to work well. No issues with that so far. If you need a SFC power supply it's about the cheapest option I found.
If you have a Super Nintendo/SFC, I can't recommend a Super Game Boy enough. It's the best way to play older GB games if you want to stick to original hardware but don't want to bother with a handheld.