I know this is really late adding to the thread....

First, I second the use of flash, but of course use a good brand (like Sand=
isk...gotta put a plug in for us right?) but I've had issues with cheap uSD=
 cards in cameras, so a high speed version ought to work great AND it does =
have all the wear leveling, etc built into the controller.  Totally differe=
nt group but I know what they are doing over there..

The full cage sockets?  I'm not sold on those, I've had issues.  Secure it =
down is my suggestion.

Using external DDR would essentially require its own micro just to manage t=
he refresh.  Now saying that, you could move to a bigger processor like a S=
AM that has built in DDR controllers.  OR....just heard this yesterday from=
 one of the other engineers, that Atmel is coming out with a ARM core that =
has internal DDR.  How cool is that?
PLEASE NOTE: The information contained in this electronic mail message is i=
ntended only for the use of the designated recipient(s) named above. If the=
 reader of this message is not the intended recipient, you are hereby notif=
ied that you have received this message in error and that any review, disse=
mination, distribution, or copying of this message is strictly prohibited. =
If you have received this communication in error, please notify the sender =
by telephone or e-mail (as shown above) immediately and destroy any and all=
 copies of this message in your possession (whether hard copies or electron=
ically stored copies).

--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.