Topic Decent raiding headset
As for a cheap headset under 20bucks, Creative Headset HS-450. Its cheap and good compared to the cost. The mic on is good aswell no static noise or anything.
As for Razer gear, they are overrated. The Razer Naga is only good if you have small hands, the buttons and the mouse in it self is clumpy and small. Would rather get the Corsair mmo mouse or the new naga with hexagon buttons(more easy to hit the right button).
I use fps mouses just since I have a g13 gamepad for all my spells in mmo's. Faster aswell than having 1 thumb to press all the buttons.
I use KOSS SB-45 and last time I checked it it was for about 25$ on Amazon. You may be able find it somewhere for about 20Ł.
According to what people say on Teamspeak I sound loud and clear and the sound quality offered by headphones is also pretty good. For both talking and music.