Thanks for the info Clem and Ron. I am indeed a 3 railer with all the PS2 I have. I started with MTH RealTrax initially and just bought some MTH ScaleTrax (just enough for a 4 X 8 test layout). At this point I am trying to decide for myself what kind of track I will use when I eventually build a large layout. I will probably test a few other brands eventually just to see the difference.
I guess I will take your advice Ron and stick with Hi Rail engines for now. Nothing against the scale 2 rail, maybe later on as I get more experience.