gdgt

i need help :S
1. im thinking of the alienware m17x but i need to know if i can manually add a second gpu (ati 5870m).
2.im also thinking of the m11x but i wanted to know how worth it is the ssd. does it increase performance?
3. when playing heavy games, does the bonus 8gb ram help?

i wana go for the m11x cuz its small and portable, lotsa battery life, only thing is im a heavy gamer and i was wondering if (with or without the ssd) the m11x is going to survive the next generation of games to come, or atleast play decent gaes without low fps. if not ima go for the m17x.

thanks :)