[rockguitarist1255]

Im still new to recording, so i want to do things right. I set up all my music in 48k, because my current guitar processor, the axe fx 2, will only allow the digital audio through its spdif output to travel at 48k and sync with the pro tools clock. The question is though, until i downloaded the pro tools 10 trial, i always recorded at 48k 24 bit. Now that i downloaded pro tools 10, it gives me an option for 32 bit float. What exactly does 32 bit float mean,. and should i record in it vs 24 bit?

Also, i have seen the box that says "interleaved" when i set up a session. Do i want to check that box when i record?

Sorry if im asking noob questions, i did read the pro tools help box but it didnt really explain to me what i should do between the bit types.