newbie question

Hello:

I want to design a board with an altera FPGA and DDR (about 2Gigabytes)
so that I can read and write from this RAM at high data rates.  From
what I understand Altera provides users with cores for interfacing with
DDR.  My questions are:

1) Are there any daughterboards already in existence (with DIMM
sockets) that I can interface to a development board from Altera?

2) Has anybody done this with success?  Are there any resources on the
net that I can read on precautions that must be taken when attempting
to interface an FPGA with DDR, layout ideas, etc.?

Thanks.
John