Cool. What control style(s) do you prefer?
I'm doomed because I play every dual-analog FPS shooter like it's Turok 2. My right thumb is "digital", and so is my concept of movement in an FPS most of the time, so I want movement to be on my right and only forward, back, strafe left, and strafe right, with nothing else to get in the way. That can be via buttons, or the GC c-stick as well (love those little angular nooks you can just jam that nub into!).
My fine control is infinitely better with my left thumb, which can think analog, and which I use to look around and do small corrections with. As another legacy of Turok 2, I sometimes try to get the left trigger to fire my primary weapon, which makes sense if my left thumb is doing the aiming.
This is one of the reasons I have to pretend I'm left-handed ("Southpaw") for most dual analog shooters: I absolutely fail at switching those two functions, I cannot understand why they moved aiming, which requires finer movements, to the right thumb when historically the NES and SNES both required finesse on the left thumb while the right thumb just jammed down buttons really hard and fast.
However, i have no problem with using my right hand for mouse control, or for Wii Pointer control. It's only when it comes to thumbs on a controller that my left becomes the only way to aim halfway decently.