Hi,
I ordered the 74HC595N mainly to experiment but I'll get a TPIC6B595 for the proper project.
Presumably I'd have to use a ULN2803 type driver for those relays if I used a Mega?
Haven't really found a good source in the UK yet for Arduino boards or copies....no doubt there is somewhere. If not then I can always buy from the USA (where the prices seem to a lot cheaper!)
Many thanks
Ron