Thanks for the responses everyone.
To answer the questions, my 80 watt PC breaks down to 2 40 watt bulbs, 1 regular and 1 actinic.
As far as the tank size is concerned, it is a 20 gallon long.
I'm sorta pissed -- on ebay, I saw what i thought was a new CPR Bakpak for $50, but then when...