I just wanted to close out this story for any future folks who might be searching for information on shipping their cars.
My experience (YMMV, past performance is no guarantee of future results, small text disclaimer here) could really not have been smoother. I went through Trans Global Auto Logistics (TGAL) out of Grand Prairie, TX>. They arranged to have my car picked up at my home outside of DC, and the driver was friendly and reassuring. They shipped my car out of Baltimore to Liverpool, RO/RO, and I picked it up myself at the Seaforth Container Terminal. I paid $1800 (yes, dollars) total for Door to Port service (when you get quotes, this bit is a must check!), which includes 20k worth of marine insurance with a 250 deductible.
When I picked my car up yesterday, I looked it over carefully for any damage, scratches, unnecessary dirt, etc. I can honestly say that they only thing I noticed is that it might have been a bit cleaner than when I left it. This is purely coincidence - my guess is that they had unloaded it and it rained subsequently. There were no scratches, no dents, no damage - not on the body, not on the soft convertible top, not on the wheels, nothing. I was ecstatic because that was my number one concern!
The interior too was in fantastic condition. I forgot for just a moment that I had completely wiped down the seats and dash with Meguiars wipes and vacuumed the rugs before I said goodbye to my car in the states and thought "did they clean the inside of my car?" Anyway, I did remember my little mad clean up dash, but then I have to say that I have a HUGE black dashboard in this car, and there was no dust at all on it, no grease on the seats, nothing. To be fair, I have a completely black interior, but still, it was very clean looking to me.
Taxi-ing from the train station to the terminal was no big deal, and it was only about an hour total from the time we arrived at the train station until we were on our way home (which includes travel time to the terminal, a bit of picture taking time, jawing with the receiving agent, etc)
All in all, I couldn't be more pleased. My husband said that driving on the left side while driving on the left side was really no big deal (he drove, I need a bit of practice yet before I'm brave enough) and he also said that he felt more confident because he instinctively knew where everything was (like wipers and lights and whatnot). To be fair, he had rented three or four cars during his past 5 months here, so he's not going to have had that sense of familiarity with them.
So that's my story. I'm thrilled to pieces about having my car here. I think 90% of the time having a left hand drive car is no. big. deal. The other 10% will be paying tolls and parking fees, and maybe being behind a big truck on a small road when you want to pass. However, considering the age and condition of my car (less than 20k miles, practically brand new, loaded with options) I thought that the cost and "hassle" of moving it over here vs buying a car here was an absolute non contest. At the time we made our decision, the pound had been much stronger against the dollar, but the math still makes sense even now, considering how expensive a comparable car would be (key word - comparable!!!!)
I'm happy to entertain questions via PM!