Safale K-97? - A German ale yeast selected for its ability to form a large firm head when fermenting. This top cropping ale yeast is suitable for top fermented beers with low esters levels and can be used for Belgian type wheat beers. Sedimentation: low. Final gravity: low. Recommended fermentation temp range is 59-75F.
T-58 (mentioned above) - A specialty ale yeast selected for its estery, somewhat peppery and spicy flavor.
WB-06 (also mentioned) - This dry wheat beer yeast is a specialty yeast selected for wheat beer fermentation. The yeast claims to produce subtle ester and phenol flavors.
IMHO for belgian yeast choices you're far better off choosing a liquid yeast, or even in the case of WLP400 (hoegaarden strain) getting a bottle of hoegaarden and harvest the yeast.
The SafBrew WB-06 is amazing in Witbiers. It is a true belgian strain, and although I have never tested it against the liquid yeast offerings, the results are great with it. It's a very aromatic yeast, and I wouldn't be surprised if it was the equivalent of Wyeast 3944 or 3942.