A few years ago, I invested in a Fig-Rig. The price is right (under US$300) and I love the look of the footage. Because it's hand held, there's still a little bit of the organic movement that you lose with the perfect stability of a GlideCam.
Versatility is awesome...high shots, low shots, travelling shots, I can attach it to a tripod, and most of my accessories...eye-lights, mic receiver paks, cabling...can attach right to the frame. Google for "Fig Rig Demo videos", & watch them to see what it can do.
I originally picked it up for my Panasonic DVX100B, but recently switched over to DSLR. For the latter, it's a wonderfully compact support package that does everything I need it to do except make coffee. :)
Designed like a steering wheel where the camera creates a low center of gravity, it self-stabilizes like gyro stabilizer, without having to fight as much as you do against a gyro stabilizer.
Which should you get? Whichever one you like. Personally, I don't like SteadiCam/glidecam shots; they're TOO perfect. I like to see a little bit of human frailty in the image that reminds me of the hard work the operator puts into the film.
I'd recommend finding friends, rental houses or production companies in your area that may own these or similar devices. Try them out for a weekend by borrowing or renting them. Analyze the footage. More likely than noe, you'll find something you LOVE, and then you have your answer.
One thing that I will note, is that there are a TON of DIY plans on the 'net to make these things on the cheap. One of my first stabilizers was made for under $10.00 with iron pipe and some fitness weights.