Which of the upcoming psp games should i get?

May be...

socom 3, little big planet, motor storm, gran tourismo, soul caliber legends, lego hp or star wars battlefront elite squad. i can choos 2 of those.

Out of those, get Gran Turismo and Littlebigplanet.

Try to get Motorstorm if possible.

And if you're a Metal Gear Solid fan, you probably have heard of MGS: Peace Walker.

socom 3 is the way to go if you want a sick online game to play. Online for socom 2 there are still maybe 6,000 people online everyday. It should be good.