Q: Multiple iCloud accounts but 1 iTunes account for 2 phones

Hi all!

My husband and I both have an iPhone 4S.  We want to be able to share our apps and iTunes music but we want to keep our contacts, pictures, and iMessages separate.  Is there a way we can have one iTunes accounts and have both phones on it and also have one iCloud account for each phone?  I would also want my iPad to match my iPhone as well with the same iTunes and iCloud account.  Is that possible?  I tried to set something up like that but continue to have difficulty.  I don't know what I'm doing wrong.  Any help/step by step instructions would be great!  Thanks!

Kristi