I don't think those speakers are as good. For one they are only 70 watts compared to 90 watts so they aren't as powerful if that matters. Also it's 5.1 compared to the creative which is 7.1. And I think the creative subwoofer is supposed to be really good.
Here's an excerpt about it.
"Do you like to inspire people? How about inspiring your friends with such feelings as jealousy, envy, or spite? With the INSPiRE P7800 from Creative you can do just that as your friends are practically blown away with your new 7.1 speaker surround sound system. The P7800 features 7 satellite speakers and a subwoofer for a total of 8 speakers giving you the absolute ultimate in 3D gaming, movies, and music! The 3 front speakers each feature a 3 inch midrange driver to deliver smooth and balanced tones. The subwoofer has a powerful 6.5 inch long-throw woofer to deliver deep clean base. While the INSPiRE P7800 is a 7.1 system designed specifically to work with 7.1 sound cards like the Sound Blaster Audigy 2 ZS, the good folks at Creative have thought of it all. You can hook up the P7800 to any 5.1 or 6.1 sound card, and the INSPiRE P7800 will up mix to full 7.1 surround with their proprietary CMSS technology. The included Audio Control Pod (ACP) remote control features controls for power, volume, and base. The ACP also has an integrated headphone jack. So make a difference in your friends, and um possibly angry neighbors, lives and inspire them with the awesomeness of the Creative INSPiRE P7800."