These are the videos I have available so far. I will ad more as I get the chance.

All videos are captures of the default rides that are available in Rollercoaster Tycoon 3 and the Soaked/Wild expansion packs by Frontier and Atari Games unless otherwise stated.

Please right click and select save as on the ride names as I only have a certain amount of bandwidth available each month. The previews are only 3-4MB so that should be ok.

Facelift Coaster This is a compact inverted style design coaster.  Preview
Sky Tower Car starts of normal then gets pulled up a tower that rotates 45% then drops the car in reverse.  Preview
Dodgem Cars Name says it all.  Preview
Galaxy Trooper A big circular ride that starts of horizontal and ends up vertical.  Preview
Tumbler Big long seat that spins, tosses and turns threw a water fountain at the bottom.  Preview
Chair swing A bunch of chairs chained in a circle that gets spun round and out horizontal.  Preview
Sky Sling Like bungee jumping but in reverse.  Preview
Rollo Plane Around and around up and down we go.  Preview
Inferno Tower Car gets taken to the top of a very high tower before it just drops over the edge that makes this ride fast.  Preview
Mining Mission A wooden style coaster track that has a steam engine theme.  Preview
Dizzy Mouse A track that has many hairpin turns that will spin the car round in circles.  Preview
The Grinder A hyper twister designed coaster.  Preview
Go Karts Name says it all.  Preview
Rolling Thunder A floorless designed roller coaster, This ride is included in the demo.  Preview