I like my SteelSeries Sensei. It's great for FPSs (95% of what I play is FPS), it's comfortable for both palm and claw grippers (I do both depending on whether I'm sniping or using an auto), it's within the price range, has space for 4 on board profiles, and you can match it to pretty much any color scheme. The only thing I don't like about it is the metallic-ish body, but the sides are kind of rubberized and I don't even notice it any more. I've had mine for over a year now and it hasn't failed me yet.
Oh, and the CPI is ridiculous, it does up to like 5800 in single CPI, and also can do double CPI (so twice as many counts per inch), going up to over 11000 CPI. I use mine at 3840 (width of my monitor), and it doesn't miss a beat. I can't say enough about it.