Software Hut has both the C= 3640 and the Warp Engine 040 accelerators available in the refurbished area.
The Warp Engine is a few $ more than the 3640, so I was wondering if anyone has any recomendation of which is better for my A3000D. I just sent my check in for the 3640, but i'm thinking of cancelling it to get the Warp Engine, after I looked on the Ami Hardware site and saw the two slots for SIMM memory, which would be very good. I've got a few laying around my desk not being used.