Best PDA recommendation

[Polkadoter at aol.com]

I am trying to figure out what PDA would work best with G4 and most mac 
software, quicktime etc. Any suggestions?  I am on the run alot more now and 
have a G3 powerbook laptop and various mac systems at home (imac, G3) and 
office (G3 & G4's), so was wondering what would be a good pda to work with 
them.  Am I asking too much  to have one that works with both platforms Mac & 
PC? 
TIA, Linda