brake disc warped, catching on brake pad creating a clicking

[Kwakki Si]

Had a mechanic look at it, he got it up on a paddock and spun the wheel and found that the disc is slightly warped/kinked in one spot and its knocking on the pad, you can see the metal strip bit on the back of the calliper move... He says this is fine and isnt dangerous so we left it at that, also i get a whirring sound when using the front brake but think its not noticable all of the time, the break pads look good with plenty of meat on them.
What are my best options? leave it as be or get a new disc? are these easy to fit?
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MOD1 passed 26/01/12... MOD2 passed 08/02/12
My current ride: ZX6R NINJA G2, The GREEEEN one!
Is it a bird? Is it a plane? No, it's a mother fucking motorbike!

[spikenipple]

I would get a new disc, as the warping will only get worse through use. Buy new pads with the disc too.
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C50 > GN250 > XJ600 > SV650S K7 > 2001 RSV Mille R > MT-09, XR400R > 2005 Fireblade (trackbike) + 2022 MT-09 + ZXR400 race bike

[Kwakki Si]