im looking to get a preview monitor out of my spark card with edius for editing. found a nice 32inch samsung but its 720p . will this be fine for viewing purposes while editing. is there an obvious visual difference between this and 1080 if im looking at the identical footage. ive read other responses on other forums that insisted the difference is night and day, noticeable different. input welcome.

Though there may be a difference, the question is - how important is that difference?
You may not be able to judge absolute sharpness as well on a 720, but you should be able to tell if the shot is in focus or soft.
The bigger issue is - how good is the color rendition / the blacks / the viewing angle?
If you're trying to judge color on the monitor, you might consider a plasma if you can't afford an OLED.

actually i had a 22 inch samsung 1080 that was very nice. definitely cant afford an oled