misk it sounds like you have a metal halide, good for vegatation. They are kind of fat around in the middle. The new bulb I got is a hortilux eye. Made for comercial growers. http://www.accessdiscounts.us/grow-light-bulbs.html
The 600 is on this page. it's a hortilux eye, SKU-66073. The Son Agro are good too but i have not tried one yet. These are high pressure sodium, just for flowering. Hope you can find one and no worries mate.

No prob, Relic, SomaBlaze's Blackberry. Sounds like I would like it too. Let us know if you find seeds. I will look too. Sorry about the losing a friend.