New gaming mouse, any ideas?

my Saitek gaming mouse has just broke (or atleast i think it has, i'll add a note to see if it can be fixed ;o!)
I'm looking for a very cheap, but good gaming mouse (£20 or so)
Any ideas what is the best around ? ^^

side note:
My mouse has just started randomly double clicking and even clicking randomly at times.
Is there any way to fix this? I can't seem to find any help!
Thanks in advance ;)

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