Oh my god, another track ball user, I thought we were a dying breed
I tried the Kensington Orbit but I didn't get on with at all, much prefer the Logitech Marble.
I don't use mine for gaming though, just desktop work, I use an MX518 for gaming, here are my rodents;
As you can see, I use a Saitek Eclipse II also, which I'm very pleased with on the whole I must have had it a little over a year now I think.
So for a mouse, I recommend you find a good one that suits your hand, it's very important that it is comfortable for you to use for long periods of time. The usual suspects are all good, Razer Death Adder, Logitech MX518, Razer Diamondback, Microsoft Habu, etc.
Keyboards, hmmm well, to be honest I prefer a slightly more basic keyboard myself, I do like to have basic media controls, mainly volume and mute and I like back lighting myself, simply because I've gotten used to having it. But the most important thing really is that the keyboard is nice to type on, not that it has bells are whistles. The best keyboard I have ever used is the good old IBM Model M, to this day it's the king of keyboards for me.
The Saitek isn't a bad keyboard to type on, it's no Model M but it's a fair compromise if you want modern features and styling and back lighting etc, I prefer the key action and feel to the Logitech G series offerings and I really don't like Razer keyboards, they feel really cheap and nasty.
I recommend the Saitek, also check out the Logitech G series, you might like them, and the Microsoft models. If you aren't interested in back lighting then a good solid Cherry would probably do nicely.
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