I'd say NJPB Live Maps *is* intended to be used without a GPS. The main use seems to be posting links in trip reports, etc - and just daydreaming sometimes.
If you get a Garmin GPS, I have made a number of free maps available here:
http://www.gpsfiledepot.com/maps/byuser/282/
My old "Classic" map should work on any of the older cheap Garmin mapping GPS'es, but it's far inferior to my newer maps:
http://www.gpsfiledepot.com/maps/view/439/
To use the newer, much more detailed map you will want a unit like the Garmin Oregon, Dakota, Colorado or GPSMap 62.
http://www.gpsfiledepot.com/maps/view/294/ These models are a bit more expensive, but you can sometimes find the Dakota on sale for under $200. I try to post links when I see them on sale somewhere. You may also find bargains on used or refurbed units. The Colorado was discontinued awhile ago, and there might be some bargains.
Then there are a number of other maps I've posted that include aerial imagery and scans of 24k USGS topo maps. They also require one of the new models listed above.
Which is better, smartphone or handheld GPS? When you drop it in the creek, I think you will be able to answer that question.