Pangolin LD2000 Intro or Basic, definitely! 
You can always easily upgrade to Pangolin LD2000 Pro later if you find out you need the features.
(The Pangolin website does a good job of explaining the features of the different versions).
All versions of LD2000 can play back ALL LD2000 shows, regardless of the version it was created on.
If you need enhanced live performance capability, add LivePro if you want one of the best packages available!
For the sake of portability, I definitely recommend getting your LD2000 in a QM.NET box!!
Being able to connect and control from any laptop OR desktop computer, anytime, really makes it nice!
The Pangolin license is tied directly to the hardware, so you could install the LD2000 software packages on as many computers as you wish, and connect the QM.net box when / where needed.
You didn't mention in your profile where you are located -
If you plan on purchasing in the USA, I recommend you contact Pangolin directly using the "Contact" link & form on their web page. You'll get a direct answer to any questions you might have, and can request a quote for whatever package you decide to purchase.
Good luck, and welcome back to the forum!!
RR
Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
1979.
Sweet.....