You just won't go away will you? Just kidding. Anyhow, once you have your 1200, 135 companies are EVERYWHERE. That is why a lot of us go that route; so we can live where we want. Finding a 135 operator is easy, they are at most airports. Now, finding a good one is a little tougher.
As far as a company taking you on with on 750TT, I suggest Airnet. I know they are definitely taking SIC's. I saw most around the 1000 hour mark, but they may also have interest in a guy with your kind of multi time. I am not sure of any others, (my 135 operator requires 135.243c) but I am sure some other posters will reply. Good luck.
Side Note: I would really try and do 135 for awhile, maybe 6 mos-year and build your skills as an aviator, pad your pocketbook, then try the regionals. I don't think the regionals are that bad, and will probably go that route sometime.
Art Vandalay, Importer/Exporter
Edit: You refered to yourself as a "young guy" in earlier posts. Just so you know, most of us cargo pilots are "young guys" as well fresh off of a year of instructing. I am 24, and see most guys working for my company are the same age. We look a lot older because of all the dust that transfers from the boxes to our skin, we don't shave all week, and we were up all night banging that regional pilot's wife while her husband is on the road. Also, we just don't care that much anymore.....