I don't know anything about wyeast, but I do know about whitelabs. I also agree about the importance of temperature, having messed with about three Belgian strains.
Yeast is really sensitive to temps, but it only matters in some cases (so long as you aren't looking for something specific, or trying to avoid something unpleasant).
Whitelabs posts the 3 most prominent flavors for a tight range of temperatures on their whitepapers for the strains they sell.
e.g.
www.whitelabs.com/beer/belgianchart.pdfThey really hide the spec sheets. I might have some somewhere I've found before which are specific to 1 strain, probably either Saison (Farmhouse) or Belgian or Abbey, since I've used those.
I also know from personal experience that one can ferment decent brew (sake in my specific experience) with yeast as 'wrong' as fleishmans as long as the temp is low and well controlled.