Welcome to the boards!!!!
I think CR is a wonderful cjoice for your 1st trip, you'll be right in the middle of all the action!
We stayed at the CR this past March here are some tips-
Our first night we didn't have any PS time booked but we walked up to Chef Mickey's and figured it couldn't hurt to ask. (We were a party of 8) They asked my DH if we were staying at the resort and said since we were they could sqeeze us in!
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The Electrical water parade comes by every night at around 10pm, it's a great way to end your day. We use to go to the food court or gift shop and buy some beers and watch it at this picnic table by the North Garden Wing, so much fun!
Jump on the monrail and take it over to wander around the other MK monrail resorts, they're beautiful and fun to walk around. There's also a boat that runs right over to Wilderness Lodge, it's very pretty there.
Don't miss Spectra Magic at the MK, Illuminations at Epcot or Fantasmic at MGM, they're all wonderful night time shows!
Go with the attitude that since it's your first trip you may not get to see everything you'd like to and that's OK. This way you won't feel to rushed and won't be disappointed if you miss some things.
Definitely invest in a guidebook or Tour guide Mike. I think the Passporter and Tour guide mike are GREAT for 1st timers!
http://www.passporter.com
http://www.tourguidemike.com
Have a great trip and ask as many ?? as you can think of here, these boards and wonderful and full of helpful, great and very disney wise people!