hi guys, im kind of blur dunno should i get a Xbox 360 or PS3 .. im the GTA fan, play almost all GTA

recent went to few game shop and ask about the price, both not very much difference. now what i have in my mind is, Xbox 360 (modded) cause i can play alot of non ori game or download, i know it's sounds so bad but because i couldn't afford a game which cost me so much of money (low salary and high living cost) and i dont think i will be able to play daily due to very long working hours. Things i concern about the Xbox 360 is ring of death, alots of people told me that xbox 360 very easy get overheated and once it overheat, cost of repair also not cheap, it is true? it is also happen to the lasted version of xbox 360?what are the common issue of xbox 360?

PS3 i read about lot's review, very reliable and so far not many problem i heard from the users but blue ray game seriously i cant afford it , sorry to say that..... I hope someone can give me suggestion ..

so it is reliable as ps3 now? another question, tey said xbox360 can play game by just insert normal external hardisk, it is true?