Minnesota Exposure

[Landlocked_Mariner]

For our honeymoon, the lovely Mrs. Landlocked and I went on a cruise.  After snorkelling in Grand Cayman and swimming with stingrays, I realized that I want to spend a significant portion of the rest of my life exploring the 2/3rds of this planet that are underwater.  For Valentine's Day my wife gave me scuba lessons and the classes start in two weeks.  I've already purchased my mask and snorkel, and fins are next, but I've got some questions about a wetsuit.<br><br>What am I going to need for diving in Minnesota this summer?  Can I get away with the same thing I would want to use diving in the Caribbean?  Or should I spend the $$ on the dry suit I'll want when I visit Seattle and dive the Puget Sound?  I've only lived in MN for a year, and I don't know how warm the lakes get once the ice melts.<br><br>Any thoughts or recs on wet vs. dry?  And if wet, how thick?  Thanks!