Kalapixie

So, I was thinking of creating an RC NXT MOC. Right now I have an NXT 2.0, as well as the older yellow brick Mindstorms. What I am looking for is an IR sensor that can connect the NXT to the older brick using IR, as well as connecting the NXT to the Power Functions R/C controllers. The two I've seen so far are http://shop.lego.com/ByTheme/Product.aspx?p=2855040&cn=17 Item #: 2855040 and http://shop.lego.com/ByTheme/Product.aspx?p=MS1046&cn=17 Item #: MS1046. What I was wondering is which of these are better for my purposes, and if there are any others which are better? Thanks in advance! Edit: I would like the NXT to be able to send AND receive information from the older mindstorms brick, and receive information from the PF RC.

I have skipped through most of the pages in this thread, but I did do a thread search and didn't see anything off hand. So if I might so humbly suggest, that maybe you add a Pneumatics category on the Other Category. My boyfriend had a ultimate builders accesory set for his Mindstorms, which came with Pneumatics. Unfortunately for me, we don't have many Pneumatics, or really any instructions. So I'd love to see some pneumatic sets, and where I could get them. Too bad lego discontinued them. The Technicopedia so far has been very helpful and I appreciate the work put into it! - Melody