Good Place To Buy Bosch Relays:

Bosch SPDT 30A Relay:
http://www.partsexpress.com/pe/pshow...number=330-070

Five-Wire Relay Socket:
http://www.partsexpress.com/pe/pshow...number=330-075

Why not just use Siemens relays?

No particular reason. I just was looking for relays I trust & found these for a good price.

They reamed me on shipping twice. I place an order: 30 mini toggle switches, and a few assorted pieces. The mini switches were back ordered (without notice on website) so the other pieces cost me $7 to ship ($3 worth of random parts). Then the toggles came and that was another $7 shipping charge.

That is pretty sucky. Most companies would have either shipped the complete order or sent you an E-Mail asking if you wanted two shipments. In any case, it's their fault that they ran out of stock and shouldn't have stuck it to you like that...