Hi Clint!
Glad you'll be dropping by our beautiful neck-of-the-woods. The must-sees between Oxf and Worcs are:
The Rollright Stones, Whispering Knights and King stone http://www.themodernantiquarian.com/site/65
And very close by you'll find the massive Hoarstone at Enstone
http://www.themodernantiquarian.com/site/3486
A couple of impressive menhirs are The Hawk stone...
http://www.themodernantiquarian.com/site/578
...and the Thorstone
http://www.themodernantiquarian.com/site/579
And for a real conundrum go to the indescribably beautiful Cotswold village of Churchill to see:
http://www.themodernantiquarian.com/site/3742 and
http://www.themodernantiquarian.com/site/4554
Make what you can of that lot. Churchill intrigues me massively. I think there's something really big going on up there which was once part of a wider ritual landscape around Chipping Norton, of which the Rollrights were a part.
There are also one or two underwhelming stones to see and some majorly trashed long barrows which are probably not worth it if you're pushed for time.
AND if you can get to the Uffington White Horse, Waylands Smithy, Uffington Castle and the Ridgeway then DO SO. They are only 18 miles from Oxford but they are SOUTH of Oxford and not strictly *between* Oxf and Worcs.
How's tricks in Berkeley? You know I once lived there at 777 Cragmont Avenue.
J
x