On Mar 5, 2011, at 2:16 AM, V G wrote:

> 1. To start off with basic things (hobby use, but with potential to =20
> do crazy
> things like reading at 400M samples/s), which would you recommend,  =20
> PAL,
> CPLD, or FPGA?

An FPGA is the most general implementation (largest variety of things =20
that can be interconnected in the most ways.)  CPLDs are cheaper and =20
more limited.  PALs are best thought of as direct replacements for =20
relatively small numbers of logic chips.  A PAL could implement =20
something like an address decoder, a CPLD an IO chip, and an FPGA can =20
implement a microcontroller.

Check out:  http://dangerousprototypes.com/category/fpga/

BillW

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