I just got the HV-20 and need to use a wireless mic for walking and talking interviews. Any suggestions. My price range is between $100-500.
Thanks in advance.
Taj

i have the samsom micro 32 system and really like it, it's got a headphone port, unbalanced output and balanced output, so it will work with the hv20, but you could also use it with a more advanced cam or board that uses balanced xlr

http://www.bhphotovideo.com/bnh/controller/home?O=9450&A=details&Q=&sku=187782&is=REG&addedTroughType=categoryNavigation

AT-PRO 88 ($105.00) is a good wireless mic for those on a tight budget. Sure, the Pro-88 has its limitations, but I will say that this unit is a solid accessory given its low price :-)

As an alternative, the Zoom H4 field recorder has quite a few advantages if you are willing to sync up the audio with your video in post. Unlimited range, no radio interference, stereo recording, and really sensitive, wide dynamic range audio for narrative, vocals or studio recordings.

I've got two Azden 300LT setups.
http://www.azdencorp.com/shop/customer/product.php?productid=93743&cat=0&page=
The receiver overpowers a small camera like the HV20 a bit, but they're a good system. I paid $385 after $50 rebate.

Thank you guys for your suggestions.. They seem like all good choices. Gonna look into each one of them more. :-)

I too can vouch for the Samson units, I use a UHF UM1 & airline transmitter with a Sony ECM-77B lavalier mic, has been a super reliable set-up for me, has both balanced XLR and unbalanced mini-jack out.