I want a waterproof case for iPod touch 2G and i want to go swimming with it and still listen to music. What is the best kind of case to get with headphones???

Hi there.  Otterbox have the best cases.  They are strong, durable and will never break.  My clumsy husband has dropped his phone several time and had it not been for the Otterbox case, it would have been in pieces by now. 

Now there are others out there too, like the Dry Pak Floating Waterproof MP3 Case.  It is cheaper.  It is guaranteed submersible.  It operates well with just a twist of two knobs on top of the case. 

And one more I will recommend is the H2O Audio Amphibx iPod Armband.  It is submersible up to 12 feet under water.  Has a latch lock closure to seal your iPod in. 

All come with special head phones.  These will all work for swimming and listening to music.