I decided last night that fermentation temperature control was not a priority for me (minimizing brew time and moving to kegs are ahead of it). I have a basement that stays pretty cool, and four floors of A/C will be seeping down there, so I don't expect it to get too warm.
Some yeasts go as high as 75 for the recommended range, but get estery and nasty at that range. Are there any yeasts that brew better beer in the mid-70's range? Are there any styles that lend themselves to warmer ambient temperatures?
Edit: I had great results with Wyeast 3711, French Saison. See comment below.