Free!
How about FREE?
If you root your Droid, you can run the free wireless hotspot app. And, because it's Verizon's network, you'll have better wireless performance than iPad users with their built-in 3G over ATT's sorry excuse for a network.
The only caveat is you'd have to be comfortable messing with your phone. It's actually extremely easy. If you ever need to bring in your Droid for warranty work, you'd need to restore it to stock as rooting voids your warranty (like jailbreaking).
I'm using a Droid Incredible. It's a very nice phone, fast, small. Before you settle on the Droid X, go into the store and hold it. Some feel it's a little large. If you need a physical keyboard, get the Droid 2. Or, if the Droid X seems to big, get the Incredible.
Head over to droidforums. Do a little research to see if you are comfortable with rooting. I'd recommend it.