Good IP location script.

[Bake]

Any that you recommend

[CYF]

maxmind.

http://www.maxmind.com/app/geolitecity

[NemesisEnforcer]

Any that you recommend

Check out the products from IP2Location.

[fatfoo]

Good luck finding the IP script you want, Bake.

[icymelon]

http://www.onthesamehost.com/

[Jack Sparrow]

maxmind, geoip ftw.

[fris]

borked has a good one, more accurate than maxmind

[Zuzana Designs]

maxmind.

http://www.maxmind.com/app/geolitecity

We have used maxmind on sites and banners and been more than happy with it.

[GrouchyAdmin]

My lame little 'country' flag script in the sig is MaxMind Country Lite based, and even though I have no caching on it, it can handle a fairly significant amount of traffic with minimal overhead.