Thanks to everyone for the tips and suggestions. Learned some valuable stuff today!
I do like the idea of cordless to break free from that annoying power cord. The larger 18 & 20 volt cordless are just a little too big for working in tight spaces but I am still considering one for other layout and general household use. I have Black & Decker and Milwaukee cordless tools. Couldn't find anything for Milwaukee and the only Black & Decker model made can't be found anywhere. If anyone has a line of that Black & Decker cordless glue gun I sure would be interested: B&D BDCGG20C
Also looked at some of the cheapo USB rechargeable glue guns but there are so many, and they all look about the same. Reviews on them were all over the place. If anyone has personal experience, I'd like to invite you to share it here.
I did find this "semi" cordless model that runs on the mini glue sticks: Surebonder CL-195F
It's unique because you heat up the gun in the corded dock and once it is removed, you can use it for about 2 to 3 minutes before it needs to be heated up again. The tip looks like it would also be able to get into some tight spots.
On the cheap side of things I found this Arrow dual temp gun: Arrow GT20DT
For 10 bucks it looks like it should be okay and i wouldn't be out much if it turns out to be less than desirable. However, the tip looks like it could really be the "Star Trek" of tips and appears long enough to reach those tight spaces.