CCL:G: g03 ab initio heavy atoms

From: "William Griffin" <wogriffin]~[ualr.edu>
Subject: CCL:G: g03 ab initio heavy atoms

 Sent to CCL by: "William  Griffin" [wogriffin-*-ualr.edu]
 Hi, I've been tinkering with this for a while in my grad studies, and I was
 hoping the CCL community could help.  I'm trying to model some small clusters
 (1-3 atoms) of heavy atoms (Mg through about U) with an ab initio method
 (B3PW91) and I'm figuring my basis set is what's leading me astray.  Any
 suggestions on ab initio methods/ heavy atom basis sets with gaussian 03?  I'm
 not in love with B3PW91, either.
 Thanks.
 William Griffin