well, that is a good question, 06 wheat I guess would be preferred.
05 was originally and English yeast that got it US name because Sierra Nevada started using it, but I would say i get more of an English clean fermentation from it. and it is a med flocculating yeast. so you "may" get a bit of the wheat cloudy but not really likely. did a quick search just now, on dry yeasts for wheat beers, there were a few that sang the 05 praise for an american wheat.
04 should give you more of a clean fermentation with a touch of fruity, as it is a true English yeast. but it tends to flocculate like crazy and doubt you would get much cloudy from it.
I would consider Nottingham (Danstar) over 04 but that is just my preference, not sure i have a great reason other than I liked the beers I have used it in, and so I did not change the yeast I used. in my opinion it is very clean, and lets the grain do the talking, it does flocculate like crazy so I has been accused of removing some hop bitterness.
Danstar does make a Munich wheat, I have heard good things about it, however I have not used it. it is a German strain and may be the overall preferred dry yeast for the wheat.