Thanks so much for the recommendations! I'd love to try the X-press It, but it's a bit out of my price range at the moment. I think I'll give the Hammermill a try...it sounds similar to the SU 80lb CS I currently use (and am almost out of). Looks like I can find 60lb in my local Staples or Walmart, but doesn't look like anyone carries 80lb, so I'll probably go through Amazon. I think 60lb might just be too thin for my liking since I'm so used to 80lb.
As for the Gina K, I think I'll just use it for card bases. I agree that the weight is awesome but it just doesn't work for me as a coloring cardstock.
"Today I will be happier than a bird with a french fry."