does any1 know how much it is to re-gass the air con, cause it doesnt feel that cold anymore

depends who you get to do it mate, can vary from 70 - 100 dollars..

does any1 know how much it is to re-gass the air con, cause it doesnt feel that cold anymore\

if your car is already more than 3 years old, very likely the expansion valve is also worn. you need to replace that to get efficient cooling.

how much does that cost??