"What about practicing and non-practicing Jews? Or even Orthadox or Reformed (Or whatever the proper terms are) Jews? "
If they are born out of the Jewish nation, yes.
Remember God was speaking to the Israelites as a nation of people. There was no distinction between whether they were 'natural born' jews or not.
"(And to really throw a twist in here...What about converts??)"
Does the bible make a distinction between 'natural' jews or 'converts'?
Hmmm...
Leads to another question...
Why do Jews practice differently? If they're all guaranteed spots in Heaven, why go to the trouble of being especially "Religious"? (If that makes sense?)
I am guessing the answer is that it makes them happy, or content while here on earth. Which, personally, is why I respect all those of different faiths..."Whatever makes them happy is fine with me".