Another option on binoviewers..... I bought a pair of Denkmeier Big Easy binoviewers. These came with a corrector so you can reach focus in just about any telescope. Now personally I can only say that they work great in both my 8" dob, and my 100ED refractor.
Again, I can only speak about these BV's, but the comfort level is much better with 2 eyes. You just seem to relax more with both eyes open. Not only that, you pick up on a lot more detail (Yeah, I did the "open and close one eye" trick while using them for the first time). Even though the only pairs of ep's that I have right now are 10mm & 25mm plossls, I really enjoy using them. I have a single 7mm Nagler ep, but as of now I prefer to use the two 10mm plossls. I'm sure that will change once I get another 7mm Nagler, but I enjoy using 2 eyes that much more than one eye.
You can find a short review of mine here on the Denk BV's
http://home.comcast.net/~astrohammer/opinionspage2.htm
Another option if you want the generic BV's and a nice 80mm scope is this package from Stellarvue. ChrisG can tell you how great the SV scopes are.... he owns a handfull of SV scopes. Just start a post saying "Hey ChrisG! Do you know anything about SV scopes?" ..... Then prepare for Chris to jump on his soapbox - lol. Anyway, find this one here:
http://www.stellarvue.com/sv80bv.html