Ditto ... nickel silver is the way to go.
Have you planned your layout? Do you intend to have elevated trestle sections and the like? If so, the EZ track is not the most protypical looking for that sort of an application. Also, the EZ track is somewhat limiting in terms of layout design configuration, as you cannot easily cut pieces to length.
You might consider conventional track, instead, with flextrack offereing a bit more free-form layout.
I'd suggest you poke around some layout ideas in a track-layout software before you make any firm decisions. Both of these are good choices, and they both have built-in EZ Track libraries:
www.anyrail.com -- you can download a starter version for free.
Or, try free shareware SCARM ...
www.scarm.info
Regards,
TJ