Need pointers on a decent CAD Mouse

[Simian]

I've been in CAD (AutoCAD and Inventor) now for about 23 years, and I've used various pointing devices to aid me in my drawings and Models.

My current weapon is a very aged Microsoft Trackball Explorer, which seems to have developed a fault, When using the scroll wheel (to zoom and pan etc) it will either zoom me in as far as possible or out as far as possible in one rotation of the wheel (also when scrolling in Chrome etc it jumps up and down from top to bottom constantly)

So I'm in the market for a New pointing device!

My main stipulations are:

Wired (getting annoyed with replacing batteries on my home Mouse!),
Decent Size and Weight (I have big hands!)
Comfort and ergonomics, due to using it 8+ hours a day!
Programmable buttons (at least 5)
Decent dpi (adjustable would be a bonus, but as I'm not a gamer, so not a front runner!).

Budget (upto) £50ish

I may need 2 of them, as I also work from home 2 days a week and want to replace my crappy little Logitech thing I have there too! so under the £50 (each) would be great!

All (relevant/sensible) suggestions welcome

 

[wildman_33]

I've had a logitech G500 for the last 4 years or so and it has proved to be brilliant. It has adjustable DPI, a fabric cable so it doesn't get stuck on things so easily. The only area it might not be so good on is programmable buttons as it only has three. It also comes with weights so you can change the weight of it to suit you.

It has clocked up hundreds of hours of minecraft which can be tough on the buttons and is showing no signs of giving up.

 

[Scythe]

I've had a logitech G500 for the last 4 years or so and it has proved to be brilliant. It has adjustable DPI, a fabric cable so it doesn't get stuck on things so easily. The only area it might not be so good on is programmable buttons as it only has three. It also comes with weights so you can change the weight of it to suit you.

It has clocked up hundreds of hours of minecraft which can be tough on the buttons and is showing no signs of giving up.

I have a G500S which I really like too.