In addition to the other answers :) - in order for PageRank and other signals to be passed from your blogspot.com URLs to your own domain name, you need to use 301 redirects from the old URLs to the new ones. That's the normal procedure when moving sites. Google is pretty good at keeping track of all of those signals with site moves if they're done properly.
You can confirm the 301 redirect by using a HTTP header checker like web-sniffer:
This should be a 1:1 redirect for all pages as well ( example.com/x123 -> newexample.com/x123 , not just the homepage). Usually, if one URL redirects properly, then the others will too, so there's usually no need to check them all.
Another thing you can do for a site move (the help center has all of these) is to use the Webmaster Tools "change of address" feature, which you can do if you still have both sites verified in your Webmaster Tools account. It's not critical that you do that, but it can help to speed things up.
Once you're sure that the move is set up correctly, I wouldn't worry about the Toolbar PageRank. It'll come at some point, there's no use fussing about it since you can't do more than set up a proper move.