FreeBSD 7.0, MS, MW, ClamAV, 8gb with 64bit or 4 gb with 32bit

[Michael Choo]

I'm planning to build a new MailScanner sever to off load my current  
server (FreeBSD 6.3 P4 2.0Ghz, 1.5Gb RAM, 2x80 GB gmirrored disks),  
currently handling about 110K mails a day (90% rejected at MTA level).  
Average CPU utilisation is about 60-80%

Am thinking of 64bit FreeBSD 7 on dual quad core Xeons (2.0Ghz) with  
8GB RAM.

>
> Right now I'd be sticking with 32 bit - there's still a few gotcha's  
> with some applications running in 64bit - MS isn't on of then, but  
> some of the perl modules can have fun sometimes..
>

Are there any known instances of perl modules not behaving in 64bit  
mode?

Anyone out here running Mailscanner on 64bit intel servers?

cheers
-Mike