Hi there YankeeSpeed, here is some info for you. Probably the closest club to Ft. Eustis would be the Country Cruisers located in the Williamsburg/Newport News area. Here are the contact details for them, and Johnny Tisdale is the guy to speak to :
Country Club Cruisers
There is also a club the Virginia Beach area, but I don't have any contact details for them. The PT Cruiser Club of Virginia has a web site at
http://va.ptcruiserclub.org/virginia/, and of course there is the best little club in Virginia,
The Caroline Street Cruisers located in Fredericksburg VA (but that is probably a little far North of Fort Eustis for you!). Anyway, enjoy your stay! All I know of Fort Eustis is that they have a great military museum there (The US Army Quatermasters Museum I think?), with a great collection of WW2 Jeeps in it!