I'd like to think that alot of Chris' quirks wouldn't exist if I was his parent because I wouldn't let them get to the point they got to in Chris.
If I had a child with HFA, I'd make the necessary arrangements but I would impress upon him from a young age that no one is going to cut you slack just because your autistic, myself included. If he needs to go to special school then he'll do so but I'd try to impress upon him a work ethic and how important it is to be able to provide for yourself.
His love of vidya wouldn't be a problem. I love vidya and internets and all that shit but it would just be a matter of teaching him that theres a time and a place for everything. I work and live around some eccentric people so if he decided to call his love life a love quest, in a world where I had never heard of Chris before, it probably wouldn't bother me as long as it didn't function like Chris'. That sign shit is unacceptable. No son or daughter of mine is standing out in the fucking mall with a sign soliciting people for a relationship and possibly sex.
I'd be hands on in teaching him about sex, love, relationships etc. And breaking down some of the things he might not quite get because of his Autism. Let him know that finding a relationship worth having is going to take effort. Bad bitches don't fall out the sky (I just really wanted to write that line down somewhere. Forgive me)
I'd try to get him in touch with some sort of group of adult HFA people around the time he turns 18 so that he might have a bit less pressure in finding his first GF and relating to people. But functioning with neurotypicals would be a must.
I probably wouldn't get him much vidya for Christmas and birthdays past 15ish. He'd have to go out and work for it. He'd have to go outside every once and a while. I'd also probably get in contact with several parents of Autistc children and begin a relationship with them so that we can glean from each other.