AVR-Chat

In my search for a chip/daughterboard/etc. that supports PSTN (PPP?) internet
access (dialup) I have come across the following:

http://www.iready.org/projects/imm/ Looks interesting but appears to be obsolete
as I can't find anywhere that sells it.  I cam across a ref to it here
http://www.sensorsmag.com/articles/0402/26/main.shtml

http://www.ee.nec.de/_pdf/U16245EE3V0DS00.PDF Looks good but I can't find
anyplace that carries it.

http://www.connectone.com (click 'products') full compliment of protocols but
expensive (eval board >$300)

http://www.cermetek.com/05/607-0017.pdf {looks good, evaluation board
http://www.cermetek.com/05/652-0250.pdf is available)  The CH2165 supports
unlimited email length.  These units have integrated modems which, in my case,
isn't desirable since I have old modems laying around and the thing that's most
likely to be done in by a lightning strike (even with lightning/surge
protection) is the modem so I'd like to keep that separate.  I think the eval
set runs $199 which is steep.

ATWEBEVK-01 Atmel eval kit for embedded TCP/IP but expensive at $264.67 from
Digikey

I found Eithernut on Sourceforge.  It's an AVR targeted implementation of the
TCP/IP stack including Eithernet and PPP net interfaces but it looks quite
involved for me to jump into at this point.

Anyone have any experience with any of the above?  Others?

Desired features:
1) support for dialup Internet access.  High speed (i.e.: 56k) desirable but not
required.
2) support for an external modem
3) Self contained TCP/IP stack and high level protocols for, at a minimum, SMTP
and POP3.  Other protocols such as UDP, HTTP would be nice.  As an alternative,
a software library callable from C that resides on an ATMega.

Cheers,

Chuck Hackett
"Good judgment comes from experience, experience comes from bad judgment"
7.5" gauge Union Pacific Northern (4-8-4) 844
http://www.whitetrout.net/Chuck