Personally, I'd invest the money you'd use on a detailer in purchasing good quality products and doing the work yourself.
There are ALOT of choices out there and alot of opinions.
I'm VERY happy to hear you'd never run either car through an automated car wash!
There is alot of good info. in this section that you'll find useful, or, shoot me a PM and I'll be more than happy to help you if you decide to detail the car yourself.