The mouseover links should be jpg's instead of gif's because of the fact that gif's are very "lossy" (as in they look like crap when resized)
Also there's rumors that the Underwater Warfare School is going to resume tours of the campus and museam soon again.
Groton isn't the only sub museam.
"Limousine-Boston,Providence,Raynham,Taunton,MA,RI... " at the top of the page should technically be the company name, so you ingrain it in the viewers mind.
Then below it put "Limousines/transportation/wth ever serving Boston, Providence, etc. etc. etc."
Also stick the 800# somewhere where its ALWAYS visible on ANY page.
You want business.