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> If I'd go with a 18F then, which one would you recommend, and could
> you recommend a programmer too?

The best I/O for cost etc... is, AFAIK the 18F452.  It has 8 A/D
lines.  You could get fancy and expand that to 16 via some analogue
switches, or you could implement an I2C (a serial bus protocol) A/D
chip.  As to the programmer, there aren't many 18F programmers at the
moment.

How much are you willing to spend as it stands?  Then we can give you
an answer as to which one would be good for you.

I suggest that instead of thermistors, you look at the LM35, which is
a linear temperature measurement device.  That means you have one
whole lot less calculations to do unless you want to use a simple
on/off system with no rate control for your fans and pumps, in which
case, linearity is irrelevant.

A good reference for finding datasheets is (And no I don't work for
them) www.chipcenter.com/questlink.  You have to sign up with them
but I haven't been spammed by them, so it's not too bad.

Regards,
- --Brendan

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