SquidGuard Blacklist Loading Memory Issue

[argyx]

I got squid and squidGuard up and working, thanks to Wiki and forum. I wasted oodles of time on Blacklists though, before I noticed that /tmp was running out of space. I can't seem to download/install more than a 2.7MB blacklist tgz (10.6MB uncompressed). That will work, since I've got the major areas I want in that file. Curious though if there are settings I should tweak. I've searched both here and FreeBSD resources.

Running on a stock AOpen DE2700 (sweet little setup, by the way)
1GB RAM
4GB CF Card
pfSense-2.0.1-RELEASE-4g-i386-nanobsd_vga.img

Thanks for any tips/suggestions :)