TXTink, I wouldn't worry about rehabs in June. They should be all finished by then -
We did like the Candy Cane, but if the price would be the same, I definitely would prefer staying on property. The walk was probably around 10 minutes. I only did it twice, both times by myself. The first morning there I woke up really early and explored Downtown Disney. One night I stayed at DD to shop and walked back to the room. I would NOT recommend this as I definitely did not feel comfortable. DL had closed an hour earlier and that side of the park was dead. This wouldn't have been an issue if I wouldn't have been alone. We typically rode the shuttle, which was very convient (my dad has difficulty walking).
I honestly don't think that I would have wanted to commute to L.A. for two and a half days. You will definitely waste some time in the commute. We enjoyed the Hilton at Universal City. It is located between Beverly Hills/Hollywood and Burbank and the Studios area. I enjoyed US. My mom and aunt LOVED it, especially the Backlot Tour. If you haven't been to US in Orlando, ET and Jurassic park are great rides.
Going to the Tonight Show was definitely one of our trip highlights. We actually wrote three different letters prior to going with one ticket request fulfilled. They will only send four tickets by mail, so the morning of the show we got up early and stood in line by 7:00 to get our fifth ticket. That afternoon we got in line at 2:30 since having a ticket does not guarantee admission. Here is the link with the address to request tickets:
http://www.nbc.com/nbc/footer/Tickets.shtml
The NBC tour was discontinued as of 7-11. It is supposed to start running again sometime soon. My mom and I are DAYS fans, so we were hoping to take the tour. We did get to see the set for Salem Place (outdoor mall), as it is located right beside the ticket office.
Ralph Brennan's is in Downtown Disney. There are actually 3 resturants: an upscale, moderate, and counter service. We ate at the counter service one (Creole Cafe). It has outside tables which was great.
We took a tour of Beverly Hills through Starline Tours. My mom enjoyed it...I could have lived without it. I'm not a big movie star fan though. Driving through the area was quite nice. I would recommend driving down Sunset Blvd (Hollywood to the coast) - it is a fantastic drive!
I hope I answered all of your questions. Just let me know if you have more