santa,
I just bought a set of gauges and senders for both my cars (boost, oil press and oil temp) on-line through these guys ...
http://www.egauges.com/default.aspThey were prompt (delivered within the week), can pay with paypal now and cheap ... even better with the AUS dollar so strong.
I highly recommend them and I doubt you'll find cheaper anywhere for big brands such as Defi, Autometer and VDO.
I bought VDO because I think they suit period cars the best ... simple, black, orange needle with green back through lighting ... and they have a good rep.
Good luck.