It's a while since I did a 3 column layout, and while looking around a
couple of sites (Alex Robinson's onetruelayout and Matthew James
Taylor's) I realised that most of this information is 4-5 years old.
Which of the gotchas are still valid in latest versions? (I recall not
using onetruelayout
I would say that Mathew James Taylor's 3-col holy grail layout is the way to
go. He updated them last year I believe, so they're not all that old. On a site
I am working on I am using a modified version of his 3col theory in a
responisive layout with percentage-based widths. Works like a charm.