I'm seeing more and more of the new and popular videos using binaural microphones (EphemeralRift, VeniVediVulpes, ThatASMRChick, HeatherFeather, etc.) so you might want to explore that avenue.

http://www.amazon.com/TASCAM-DR-05-Portable-Digital-Recorder/dp/B004OA6JW0/ref=sr_1_6?s=electronics&ie=UTF8&qid=1386185350&sr=1-6&keywords=binaural+microphone

http://www.amazon.com/Zoom-Handy-Portable-Digital-Recorder/dp/B001QWBM62/ref=sr_1_5?s=electronics&ie=UTF8&qid=1386185350&sr=1-5&keywords=binaural+microphone

Personally, I'm more focused on the audio portion, so I would go for excellent audio before I started focusing on the video portion.

I use the Tascam DR-40 for all my DSLR audio needs. It is less expensive than the H4N. The one downside is that out of the box it will need a firmware update if you want to catch 4 audio channels from the device (two built in mics and two external mics). The firmware is easy to upgrade.

Here is a review of both done by Cheesy Cam: http://cheesycam.com/tascam-dr-40-vs-zoom-h4n/

Here is an amazon link for the DR-40 ($174.99): http://www.amazon.com/DR-40-4-Track-Portable-Digital-Recorder/dp/B005NACC6M/ref=sr_1_1?ie=UTF8&qid=1349040942&sr=8-1&keywords=tascam+DR-40

Here is an amazon link for the H4N ($261.00): http://www.amazon.com/Zoom-Handy-Portable-Digital-Recorder/dp/B001QWBM62/ref=sr_1_1?ie=UTF8&qid=1349041012&sr=8-1&keywords=zoom+h4n