Dd got a set with about 100 pieces from toy kingdom, and about a week later was given a similar set from a friend - not sure where the second set was purchased, but both are wooden and fit together well. Unfortunately she doesn't love it so much anymore (trains aren't as much fun as lego) so apart from a couple of hours yesterday when we had another five year old here) they just haven't been touched and we are planning on getting rid of them.
No table here. The train set takes up pretty much our whole lounge room floor lol