I have thrown together a package for the latest Zabbix beta release, 1.5.4, which can be downloaded from my PPA here. It’s based on the official Zabbix 1.4.6 package for Intrepid, but i added zabbix-proxy-mysql and zabbix-proxy-pgsql as well, along with some minor refactoring in the inner guts of the package. If you find issues, just give me a whistle!