Hey there Scrubber. Yes, I've used the Thomastik Infeld strings before as well. The red and blue sets were pretty good, but not as nice as the Dominants (for my fiddles at least). While I was looking at the Thomastik site, I saw a coupla sets that priced out at close to 100 bucks a set!
Too rich for my blood, though I'd love to hear how they sound.

I'm really liking these Pirastro Obligatos. I can honestly say that these are the first set of *quality* strings I've gotten that make a noticeable difference in the sound and tone of the fiddles I have. If you decide to get a set, go for the gold E string. The guy at Christian Eggert Violins told me that it was more compatible sound-wise with the others-- not shrill or harsh like the steel E string tended to be.
In other words -- it meshes better with the overall sound of the set.
There's another forum I frequent where we are talking about (among other things) guitars and music in general. I mentioned to them that I got these strings, how good they were, and what they were made of.
One of the posters on that forum/thread is from Texas, and made a smart-a$$ comment rebuking me for using anything but cat-gut strings!!
I told him that we're in the 21st century now, NOT the dark ages!!
Anyhoo -- if you get a set, I hope they work as well for you as they do for me.