My son says the 4G is worthless to he and his friends. Find out what games your son's friends like to play. Those are the games he will want. You can not take this info from anyone else because each group has different preferences and some kids play different games alone-not online. My son and his friends play Call of Duty but the key is which Call of Duty...there are more than five and every group of gamers has their favorite. Due to overheat problems, make sure you get a console with a cooler or buy a seperate cooler. This is really important. You need at least two controllers and wireless is important. Kinect is not important right now and you need lots of space for Kinect to be fun anyway. "Elite" is a term used for the older consoles and the newer ones have the cooler built in. Online play requires an annual membership, $60 and either the "Elite" from the past Xboxes or the new Xbox that has wireless built in. We ended up getting a 'good' headset for onlline as well so I couldn't hear everything all the players were saying. Some of the young men had some salty talk going on and after I yelled 'watch the language!" a few times, the boys told my son to get a headset, lol!!! DS says you need to go to Gamestop and talk to those guys. I have found the local Gamestop employees to be wonderful and I'm a grandma looking woman. They take me under their wing and make sure my son gets what he needs. Go there. They are good folks who want repeat business so they really work to help. Go when there are fewer customers-school is in session so they have time to talk to you.
Not only are the guys and gals at GameStop great with info, they also have a rewards program that you can sign up for. They have both the free option and the opton that is 14.99 for a year.
All 3 of our 360's are the 250g. The 4g is pretty much worthless, for the age range your son is. If he was much younger, maybe worth it.
Wireless controllers with the rechargeable packs are a god send and well worth the money!!! We were doing the rechargeable battaries, but with 5 controllers, we were still going thru them like crazy.
While, it may not be an issue right now with Xbox Live, when and IF you do get it for him, 99.9% of the games that my then 14 year old was playing were the M rated games. DH is a BIG time gamer and DS and DD both play with him. Their grasp of what is real vs make believe is where it should be. They both know what we will and not allow them to do while on line, it is very defined. BUT, because they both play M rated games, DH had to set up their accounts on Xbox Live with his birth date. If he had used their actual birth years, Live would have blocked them from playing some of their favorite games on line. That is a decision that you will have to make, like I said when and if you let him access Xbox Live.
Also, when you play on line, you don't HAVE to have a head set, but if he makes friends or connects with school friends, it is fun to be able to play the game and talk to and give instructions to those that you are playing with. I have even chatted with one of his school mates while DS was correctly doing something he had rushed doing earlier. I took over his character and the one kid yelled at me for being a horrid shot. I reminded him I knew his mother and she would have is hid for putting my gaming skills down. Changed his tune and said I was the bestest gamer in my own world. Smarty pants!!
The other plus of Xbox Live, if you don't already have it, you can get Netflix via your system.
We don't have any of our Xboxes on coolers or fans. We went out and bought these types of stands. That way the Xboxes get air from all 6 sides.