plz help me!

Return of Ultraman is pretty good, and Utraseven would be another good choice if you want to watch the Ultraman series in order. 

My personal favorite Ultraman series (next to the original) is Ultraman Max, and I do recommend it. :)

I unfortunately have no clue where to find Zone Fighter though, sorry. :P

MechaGoji,
UltraSeven is a great one. It came right after the original Ultraman and is largely considered just as good, if not better than, Ultraman. It's on DVD. You can buy it here.

Also Crunchyroll has a few Ultraman series available for free streaming you might want to try out:

Ultraman LeoUltraman 80
Ultraman Max
Ultraman Mebius

My favorite series unfortunately doesn't have an official release in the states yet, Ultraman Nexus. If you can get your hands on that one you're in for a hell of a ride.

As for Zone Fighter, I'd contact Danzilla in private for that.

For more info on these releases, check out this thread: The Ultraman Resource Thread

thanks guys, a had a list of ultraman series i wanted to look at befor i posted this, and all the ones you guys recomended were on that list. a gues great mind's think, well  you know the rest and once again thanks for the help :)

Check your inbox, Mechagoji-175! ;)

Thanks so much, cant wait to buy one when I have some spair cash :)