spirobulldog

I wouldn't try to divide up 7 days between Yellowstone, GTNP, and Glacier. Stick with your 7 days in Yellowstone area and consider Glacier later(unless you can add another 5 days to your plans). We plan on doing Glacier in 2011, btw. Will meet my parents there and also @ Bryce on two seperate trips in 2011.
Some of my favorite places would include Sequoia NP, along with Oregon/Redwoods/Portland/coast. Seattle area does look interesting. I know you said earlier that Alaska doesn't interest you, but it was spectacular. We go to Yosemite at the end of May. I think it will be great, if I can get past the crowds. I will be shocked if you don't love Yellowstone. I hope to go back there several times, even in the winter at some point.

Supercilious

You seem to like the Southwest. You might look into a southern Colorado and northern New Mexico trip. Fly into Santa Fe and visit Taos, Chaco Canyon, Mesa Verde, Durango, Silverton, Ouray, Black Canyon of the Gunnison, Great Sand Dunes NP, etc. You'd need a couple of weeks because you would want to spend 4 or 5 days just in the Santa Fe area. It's quite special. Also, Mesa Verde is one of America's great wonders.

Another great trip is through the Canadian Rockies visiting the great national parks of Alberta and Britich Columbis. A 2 week trip here could also tie in Glacier and Waterton Parks. Glacier is a great NP but the Canadian parks are even grander.

Myer

Glacier looks interesting but may not be enough on its own.

A tie in with the Canadian Rockies could work.

Thanks.

anna_roz

I stongly second Canadian Rockies. You could start in Vancouver, maybe include Victoria, then transCanada 2 (it will be a long day but gorgeous), overnight in Revelstock, then the Icefields Highway up to Jasper, then back down..

Or,you could just do Paris!