Thank you all for your replies!
JeremyR, I'm really not interested in web browsing, just email. But it sounds like I'm better off just doing email on my netbook.
And thanks for the info on taking notes. There are times I wish I could take notes or highlight on my Pocket Pro, but it's not that big of a deal.
ATDrake, Ok, it sounds like the "collections" is similar to the folders I have. One thing I like about the Pocket Pro is that I can have several layers of folders, so I sort books first by genre, then have another folder under that for author or series.
desertgrandma, if I didn't have my ebook reader, I think I might go with the K3.
Thanks again for all your input! I think for now I will be content with what I have, but if I decide down the road to get another ebook reader, I will seriously consider the Kindle. Thanks for your help!