Hmmmm... Well i don't have a Wii (i mean the console, you perverts), but in my experience there are two basic approaches for managing games in DOSBox:
- "Outside" -> use a frontend that's running one the host OS
- "Inside" -> use a DOS frontend that's running in DOSBox
Each of those two have their pros and cons. I started out with a custom-coded "inside" solution. I created simple ini files for each game and then a 4DOS script that would build a graphical menu out of the info in those ini files. This basically worked fine, but there are some things you can't configure while DOSBox is running, so i've kinda abandoned that idea and are currently "rebuildiing" my DOS games collection so it can be managed by whichever frontend i choose to run (currently GameEX).
Dunno how easy homebrew on the Wii is, but i guess it should be possible to combine both ideas and code a simple launcher app that will read info from an ini file and launch that game with the appropriate settings (or a custom dosbox.conf if the ini's are a problem).
Oh, and i think i've seen functionality in DOSBox frontends to export custom dosbox.conf files. So you could configure everything on a PC and then use the exported conf to run the game on the Wii. That's the beauty of emulation after all - being able to run stuff independantly from the original system.