Here are some pics of Tumon Bay in Guam and a little of Dededo. Tumon Bay looks like a mini-Waikiki in my opinion but unlike Waikiki its not very dense and does not have a large residential population. This thread has some day shots, night shots and aerials, so enjoy.
This area is called Dededo and unlike Tumon, it appears less touristy and appears to have a small business district. It is also the most populous village in Guam at over 46,000.