I have had a Logitech G7 for years, loved it to death and may get another one. The left-click has turned into an often double-click in error, and I googled for the repair job and tried that but I apparently don't have the dexterity or steadiness to fix it, as I now can no longer left-click at all. (I reversed the right/left clicks so I am struggling along for the time being)

I am open to something different instead of a replacement though, so let me know what you like.

Here is what I'm looking for based off what I like about my current mouse:
* Wireless, USB-rechargeable battery pack preferred, but I use regular rechargeable AA and AAA batteries anyway so those are ok too. My current one uses a hot-swappable pack which is nice.
*Laser or optical
* A high DPI that can be switched easily (to toggle between quick trigger FPS games and photoshop work)
*I don't care about tons of programmable buttons - this is something I see a lot on nicer mice but I simply don't use it. I want to left/right click, middle mouse button/click, and change DPI on the fly. I have no need for anything else so if that gets a lower price point that would be great
*Looking to spend is $50-100