Links
Withnail and I:
The Withnail and I Resource - I'd advise you to check this site out instead of mine - it has over 100 links to Withnail and I goodness!
Criterion Collection page about the Withnail and I DVD - Also includes an essay by Bruce Robinson
The Arena of the Unwell - Well, it hasn't been updated since around 1998, but it's still worth a look... :)
The Script - Er, the script. :)
Richard E Grant:
The REG Temple - Grant's official site, run by dedicated fans
Paul McGann:
The Paul McGann Estrogen Brigade - Run by fans, for the fans :)