lol i think it'd be safe to say that 3200dpi would be overkill on anything smaller than 19*12 huh? and yeh I've been meaning to make a Best Buy run, unfortunately Best Buy and the Ratshack are the only electronics stores worth meaning in good ole Wilmington so not much for exactly finding a good computer stop
I'm using 4000DPI in 1680x1050 (Razer Lachesis)
I own the following mice:
Logitech MX510, G3, G5, G5 2007, G7, and Razer Lachesis
MX510: descent baseline mouse, easy to use, but basically, you can do better.
G3: kind of a 'no frills' G5. It doesn't have the G5's shape, the adjustable weights, and you can only switch between two DPI settings using one button. But it uses a 2000DPI laser and is pretty accurate.
G5: 2000DPI laser, which you can switch between 3 DPI settings without installing the software, or 5 if you do install the software. Adjustable weights (which a lot of people consider pretty useless, though some people subjectively disagree), is easy to fit in the hand, and is a nice, accurate mouse to use.
G5 2007: addresses the only complaint I really had with the original G5, and adds an extra side button (so that you can now navigate forward as well as back in explorer or browser windows, or bind another action to it for games). Otherwise, the difference is essentially colour and grip.
Overall, I'd get this version of the G5, because I do find the extra button very useful.
G7: pretty much the only wireless mouse you should consider if you plan on gaming. It's essentially a G5 in wireless form, but without the adjustable weights (in its place, are swappable batteries, so you can charge one while using another).
Despite being wireless, it is a very fast and accurate mouse, and it is a serious contender in competitiveness.
My only two complaints are: 1. batteries don't last forever (which you have to expect from wireless anything), and 2. like the original G5, it only has one side button.
Lachesis: is the fastest and most accurate mouse of the lot, and has a total of 9 buttons.
It has an ambidexterous design, so if you're one of the few people who use a mouse in your left hand, this is the mouse for you.
Two of the side buttons (the ones you'd use with your thumb, whichever side it's on), are relatively easy to press, but the other two not as easy. So you'll probably want to bind these buttons to more passive commands.
Also, it's shape isn't easy to get used to, neither is its 4000DPI laser. And the vast majority of people (including the computer illiterate and those who simply browse the internet and check their emails) are probably not likely to be able to get used to it either.
However, if you're a gamer, you're a lot more likely to be one of the people that can, and it is a very fast and accurate mouse to use. Combined with the large amount of buttons makes it a great mouse for all sorts of games.
But just don't expect to instantly sweep away the rest as soon as you start using it. You really do have to take the time to get used to it.