Schtumpig,
Your initial list is excellent. The MFT/CT/TS55 (older versions) were my first Festools. When I was remodeling my master bath (10' X 13'), my shop was IN the bathroom. And that includes the CT22 WITH the boom arm. There are some bathroom pics in this boom arm review on talkFestool:
Boom Arm Review. It's amazing how fast you can work when you don't have to run up and down stairs to your shop.
Since then, I've added the OF1400, five Festool sanders, a bunch of guide rails, Domino, HL850, Kapex, and a CT26. The OF1400 is excellent. For finish carpentry, the Kapex is the best miter saw available (add zero clearance plates and a Tenryu finish blade). The HL850 made planing a bunch of joists coplaner quite easy.
My CT22 is now my portable vac and the CT26 with the boom arm is my "shop" vac. They are core to almost everything I do. Besides providing dust collection for my Festool tools, they also provide very good to excellent dust collection for my Triton router (router table), Dewalt thickness planer, Laguna band saw, Dewalt table saw, hand sanders, and Kreg jig. FYI,
Fein Hose Adapter will connect the D27 hose to almost anything. I have four, including one in the Makita belt sander box and one in the Kreg box.
For the TS55 vs 75, that's a tough decision. The TS55 is the best option for cutting ply and most solid wood up to about 5/4. It will cut 7/4 at 90 degrees, but not on a bevel. For thicker hardwoods, you'll want to use to use the 12 or 28 tooth blades. IMO, the TS55 is the best overall option, unless you will be cutting a lot of thicker material, especially hardwoods. Then the TS75 is probably the best option.
One philosophical point... While I agree with the concept that quality work is mostly the skills and knowledge of the woodworker, the problem is how to get skilled and knowledgeable? We can study books and videos, but skills and knowledge come mostly from doing - learning on the job. When a relative beginner encounters a problem, the question is: What caused the problem - the tools or the person? With poor quality tools, it's difficult to know. With good quality tools, you can be pretty sure who (not what) caused the problem. [cool] IMO, Festool tools are MORE important for us folks who aren't expert craftsman.
A final point... Ask yourself: Why so much passion about Festool tools? IMO, it's because they work and keep working, and every day we use them, they tell us "You made a damn-fine buying decision!". The cost fades quickly, but the quality keeps talkin' to us.
Good luck with your decisions.
Regards,
Dan.