should we go with 32 bit or 64 bit OS?

We are running SW2007 SP5 with 2GB of ram. One of our usershas trouble sometimes with memory when he gets up to 1.7 GB, so weare thinking about getting him a couple more Gig and enabling the 3GB switch.

We are also considering purchasing new computers and are wonderingwhether or not to go over to a 64 bit OS. Is it a no-brainer to goover to 64 bit so that we can have the flexibility to get over 3GBof memory if we ever need it? Or are there other issues that makeit more of a pain than it would seem to be?

What are your experiences?SolidworksAdministration