I have to second your vote for resizable widgets lacking in Launcher Pro. I installed it last night and was blown away with how incredibly fast it is and how it brings some of the HTC Sense UI to my droid X. I love the pinch to zoom to see all 7 screens to switch screens. And the visual effects of the app drawer fly in were really cool.
But, I have to have my resizable widgets. So I unistalled it.
I will definitely be keeping an eye on the progress of this app.