FreeBSD 6.1 amd64bit vs i386

[Ralph Ellis]

I am currently running FreeBSD 6.1 i386 on my main desktop machine which is an 
AMD64 3200 and it is rock solid and stable. I am about to put FreeBSD on my 
laptop - a Gateway 7422 with an AMD64 3200 as well. The laptop is a bit 
fussier about operating system settings. Am I better off to go with the i386 
or the amd64 versions of FreeBSD 6.1? Is there a difference in terms of 
overall stability or major features?
Thanks
Ralph Ellis