For sheet goods - and cutting down doors - the TS-55 would do the job and comes with Festools edge guide. Add their accessory equivalent of a miter gauge and you can not only cut a nice straight edge, but have is square to the edge you set the miter gauge against.
As for the Eurekazone straight edge system, I semi-agonized over getting their set up - the two 4+ footers and the joining accessory to permit ripping 4x8 sheets lengthwise AND their Square attachment - or the Festool TS55 and the guide that comes with it PLUS the angle attachment and an extension to allow for 8' rips. Went with the Eurekazone - and have some buyer's remorse. The guides are nice and wide, pretty rigid
- but HEAVY relative to the Festool guide. I also thought the Eurekazone's replacable plastic edges for making a zero clearance edge was as good as Festools replacable equivalent. But the EZ plastic is pretty thin and brittle - easily damaged, given the weight of the guide itself. Now wish I'd gone the Festool route, but the EZ works as advertised.
I got the Festool CT22 "dust extractor" at a combo price with their saber saw - and it a) keeps chips and sawdust from getting away and b) keeps the cut area nice and visible instead of surrounded by chips and dust. Not absolutely necessary with the saber saw, but is, more or less, with the DOMINO. And, like Goldy Locks & The Three Bears, the CT22 is not to large, not too small, but just right -and part of the Festool "system". something no other tool manufacturer seems to be even thinking about.
charlie b