Connecting a NAT router behind a NON-NAT router

I have an 8 IP non-nat broadband connection.
2 ip's are used for internet facing hardware.
Is it possible to use one of the other internet facing ip's to connect to a NAT Wireless router to be able to connect several pc's devices etc.
I am using a Speedtouch 500 series NON-NAT router.
If I can connect an additional nat router, will it require any specific specifications to handle the task.

In general terms, it is quite feasible to do what you want.

You should be looking for a cable router (ie. one without a built in ADSL modem).

Something like this, perhaps.

Might be better if you find a Speedtouch one for compatibility with your existing equipment.

Alternatively, you could go for something like this which would everything you need [i.e mixed Nat and NoNat] with just one box.

Yes. Easy. Just create a masq rule for traffic coming in on that eth interface alias.

"no nat" is a misunderstanding, a single router can happily use NAT and external IP addresses at the same time.