i personally don't see any point of needing an HD capable video camera for home videos, so i choose to go with the non-HD version. the HD version will take up twice as much hard drive space for the same length of video. HD video will also take longer to upload to online sites such as youtube. imo, you have to determine what your uses will be, and whether or not having high definition video capability for those uses is important to you.
You will need a laptop with you to off load the videos from the camcorder. And the videos by default are in MP4 format, which is already a compressed format. Saving videos directly onto your laptop (drag and drop from the camcorder) wouldn't degrade the video quality.
For the flip mino, yes, or you may buy an AC-USB power adaptor. For the flip ultra, you can simply swap in a new pair of AA batteries.
i think it's in the recording time.
the flip ultra,( which i have but lens broke and i'm buying a 2nd generation now)
holds up to 60 minutes of video and the 2nd. gen. is 4gb and holds up to 120 minutes.
there is also a 8gb that holds the same amount of video but has better screen resolution.
read the reviews as i've found lots of good info. and will be buying the 4gb one on ebay, where they are much less expensive.
i'd opt for the 2nd gen or any newer model as flip is always on the improve.
i think i read that the 2nd gen comes with a pause button.
hope i've helped.
You also have to really think if you want to deal with HD files. They will be much much larger to save and backup. If you really want to watch the HD movies on the computer or on a HD TV set then go with the HD version. If you don't really need the HD resolution or will just be uploading movies online you may not need the extra resolution from the HD version. Just some things to keep in mind.