Postfix, amavisd, spamassassin on CF?

Hi all,

I have just had a hard drive in a box I use die due to the high weekend heat.

The box is a miniitx board that has a compact flash type one slot on it. The biggest CF card I can see is 1Gb.

The box is used for spamfiltering using postfix, amavisd-new and spamassassin, it was running on Gentoo.

Now the HD has died I am wondering if I could possibly get a distro up and running with the above software on running off a 1Gb compact flash.

The box has 512Mb RAM in it so I don't know what I would do about swap space. I don't need any sort of GUI, the box runs headless anyway.

Can anybody point me in the direction of a suitable distro please?

TIA