Personally, I like tinplate track that has close ties like prewar 072 did. I use K-Line 042 curves and their 3' straights, and Williams 031 curves. They're all easy to cut due to the extra ties that prevent a lot of flexing while sawing. There's plenty available at shows "under the table", and it's cheaper than all the other brands.
I know you're looking for a more modern track, but there's still something that's emotionally appealing about a "retro" look.
Good luck with the new layout.
