Hardware Question: 1-2 GB Syslog/Day

I'm evaluating the Firewall Analyzer. I downloaded the demo, installed and everything worked properly. The reports are nice - looks like a great product.

I'm a bit concerned with performance though and I was wondering if you could rest my fears. We are collecting logs from a PIX 515e firewall. The unit is only sending about 1 gigbyte per day to the syslog server (using "informational" logging). That doesn't seem too extreme to me, but I can already see the server, after less than 24 hours, beginning to show signs of stress. As a matter of fact, I had to kill the mysql service in order for it to recover as I couldn't get into the web gui at one point.

To be fair, the server isn't a powerful one and it isn't SCSI (new, but low-end Dell used for testing at my company). It is a Pentium IV 2.8 Xeon with 512 GB ram, IDE drives.

From reading the requirements:
http://manageengine.adventnet.com/products/firewall/system_requirement.html

It seems the cheap test server is most certainly on the low-end of the spectrum!

Can mySQL handle 1-2 GB of data a day? If so, what does the application need as far as hardware in my situation in a real-world scenario? How about archving? I know it is capable of doing this - can I archive, daily, anything older than 30 days?

Thank you very much,

Hutch