Congrats on your present and your great wife!
If you know which trailer your getting, you can usually download the instructions from the manufactures site to prepare. The instructions are complete, but not great, so reading through a few times will help it make sense when you're assembling.
It took me over two weeks after assembly before I could use my trailer because of paperwork issues needed for inspection and licensing, so be prepared and check what you need in your area, and what order you need to do things.
Start gathering your gear, which will probably be much more than you use now, as you can easily head miles off shore. So add a portable Marine radio, maybe a EPIRB etc. (see
http://www.hobiecat.com/forums/viewtopic.php?f=71&t=33319 for a current discussion on gear)
And enjoy! Post pic's and updates. Welcome!
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Hobie Island Sailing since 2006