-Shimano 105 dual pivot brakes (front and rear): $43
-Shimano 600 RD-6401 Derailleur: $23
-Shimano 600 FD-6401 Derailleur: $16
-Shimano SL-A400 DT Shifters (Indexed): $30
This is what I bought recently on ebay and through the forums. The shifters were NOS too. All prices include shipping. So if you're just getting derailleurs and a FW it's a bad deal. I didn't mind spending a little extra on this because it was exactly what I wanted.
Like mudboy said, if it is a true groupset with BB, headset, hubs, crank, and brakes etc, then it's a great price.