External Graphics Card Caddy Can I Buy An External Graphics Card To Boost My Acer Ferrari 1005WTMi?

Can I buy an external graphics card to boost my Acer Ferrari 1005WTMi? - external graphics card caddy

My kickass 1005WTMi Achilles heel is the ATI Radeon Xpress 1150th Quake 4 can grow, the ability to play with a video card? What to buy and where?