Cass, Most of the tour companies have there equipment in one big building at the bottom of the slopes. We all get a bus down there together, it is a mad house on the Sunday.
Alec
There will most likely be a welcome meeting on the morning after you arrive - here they will welcome you to Bulgaria, sell you loads of trips, and dish out the details for all the ski equipment booked. You then walk up to the depot - normally near to the Rila and get all your kit - and remember, if it ain't comfortable, change it...