Anyone know a dependable private taxi service?

[jparrent]

Hi there:

We are having a number of friends and family visiting in the next few months (after Cervantino). Since my husband and I are here serving with the Peace Corps, we are not allowed to own a car and getting permission to rent a car is a hassle for us as well.

So we are hoping someone may know a dependable private tourist taxi we might be able to hire for special times. We can use the normal taxis around town, but we are looking for someone willing to pick us up in San Miguel and pay them for 5-6 hour tourist visit to Atotonilco, Dolores, Santa Rosa, etc. We would also like them to be able to act as a shuttle to and from the airport. An English speaker would be preferable, but most of the folks coming speak enough Spanish to be able to communicate easily.

Any help would be greatly appreciated!

Jeanne