Luna11 and?????
The software and I/O. With SCOPE Fusion when it is released, all cards will finally share the same OS, but with a new "full" Pulsar card, you'd get the synth & fx & mixer bundle with it -- currently you get ProPack! (Mod2+STS3000+Pulsar ProMixer,Lightwave,fx, etc). It's a really nice bundle for sure. Depends if you want the extra stuff and the 'full' Pulsar card - but an XTC w/ IO is definitely a cheap way to add more DSPs to your Luna.
I love to comment on questions like this 
I had a Luna 2 board and upgraded to Pulsar 2 and XTC. Run, don't walk to your nearest Creamware dealer and just DO IT! You will be so happy you did. The richness of the FX packages and synth devices in Pulsar makes the whole thing so worthwhile. You'll thank me, believe me. Luna seemed half-baked to me. Pulsar (with a few exceptions) works so much better - in almost every way.
And btw: Subhuman will give you a great deal on whatever you want. Tell him krizrox sent you and he will knock another 25% off the cost
(just kidding Seth!!!)
<font size=-1>[ This Message was edited by: krizrox on 2002-02-25 13:44 ]</font>

I had a Luna 2 board and upgraded to Pulsar 2 and XTC. Run, don't walk to your nearest Creamware dealer and just DO IT! You will be so happy you did. The richness of the FX packages and synth devices in Pulsar makes the whole thing so worthwhile. You'll thank me, believe me. Luna seemed half-baked to me. Pulsar (with a few exceptions) works so much better - in almost every way.
And btw: Subhuman will give you a great deal on whatever you want. Tell him krizrox sent you and he will knock another 25% off the cost

<font size=-1>[ This Message was edited by: krizrox on 2002-02-25 13:44 ]</font>