Annoying Squeal When Turning?

Have a 2000 Nissan Maxima. From what I have read and researched it could be a wheel bearing, cv joint, or struts. The noise only happens when I turn left, only left, above 20 mphs an when i take larger then slight left turns. Also when I go over bumps at low speed i hear squeaks. I called the shop they said its the bearing and its 390 to fix!...I jacked up the right wheel and shook it and didnt get anything I did it on the left one and it shook a tad with a slight sound. So is it the bearing? Is it hard to replace it myself, I dont have the cash for that now. Is there how to guide online or anything? help :/