All those are good scopes. The 12" is a big scope and very heavy, so too is the 11". The 10" is managable but still a beefy scope. All have good mounts and it depends on what you are doing or want to do with it.
Light pollution can be a drama but all these scope will give you good views even in those conditions.
If you are interested you could go have a look in the buy and sell forum for a 10" Lx200 GPS UHTC that I have for sale. It is in prime condition and comes with a JMI hard scope case. There are other items I have for sale which could make a nice package for you. Anyway, I don't want to hijack your thread.
Other places to look for info is cloudynights.com , they have lots of information and reviews. Our site is good but we are only a year old. Other places to look is
http://www.californiastars.net and click on the banner for Meade.
Congrats on your choice to join the big league.