Massive Summer Games Get

I'm pretty pumped and ready for summer! :) 

Amazon just had their "Dads and Grads" Sale thingy and I bought Fable II, Banjo-Kazooie: Nuts and Bolts, and Viva Piñata: Trouble in Paradise.

Also, I just picked-up Mass Effect used at GameStop on the cheap.  I need to finally play and finish this before Mass Effect 2 comes-out. 

All this before I get my pre-order of BlazBlue: Calamity Trigger at the end of the month. 

Some others I want to pick-up are [PROTOTYPE] (because I just finished (twice) and Platinum Trophy'd the amazingly awesome inFAMOUS!) and maybe also Red Faction: Guerrilla. 

My questions are where should I start?  Is it still easy enough to rack-up the Achievements in Fable II, without exploiting the Pub Games?  Is summer enough time to enjoy them all?