Just finished installing Yoshi frame sliders and I must say I really like em. Not too complicated of an install and they seem VERY sturdy. Lots of people are averse to cutting the plastics, but I would much rather have a nice round hole (that nobody can see anyway because the slider is covering it up) than scraped up plastics.
Here are some pics and a link to the how-to video.
Here are some pics and a link to the how-to video.