yup.what u trying to do is like everybody being doing long time already.they called it games sharing except u thinking of selling ur ps3 with all DL games and dlc.btw everything that been dl from PSN store is stored in HDD regardless of user profiles means any other profile can use it but in mind the user profile that DL it still exist(games and add on only)
even save data can be share amongst user profile but the exception of the save data not connected to any on9 server that use psn id
diff user profile on ps3 just mean new user profile only.it can play and use everything that are stored on the ps3 hdd.

yes. the point is 5 physical ps3, not limited to user accounts. other user on that ps3 can only play the game already existed in the ps3, they wont magically have those games tied to their account.
if a dlc is only tied to one user account, many ppl will get angry. because if you have many siblings, each one of them must purchase separately even if they use the same ps3 

it is not 5 person but actually 5 ps3 console.any DLC such as games or addon that has been downloaded can be used by any user profile or psn id on that console as long as the original user profile that used to download it still exist.

if you already shared with 4 other ppl, it counts as 5 ps3 already. you wont be able to download anything owned by the shared account on the 6th ps3.

Hi guys, let's say...I got alot of money on Hari Raya...and I wanna spend it like hell..soo..should i buy a PS3 games or Sony Bravia??(And whats the most cheapest one??)Cuz i dont have a HD TV soo...hehe  I dont care its big or small..as long its cheap and its BRAVIA!!

means got a lot but NOT that alot la.