So you want the lightest 'roller bearing' slider available? Varavon's got a pretty good thing going with it's slim version sliders, but pricing has not always been in our favor. Today that's all changed. There's a pretty good sale going on right now, and It appears there's been some design changes to their slider product. This is a new Slider in their product lineup called the 'Slidecam Lite'. It's still the slimmest and lightest roller bearing slider on the market, with adjustable legs / feet. Starting as small as 24" long and prices just over $250. I just picked up the 24" version, couldn't pass up the price. You can find them on sale right now following the link (click here).
Varavon Slidecam Lite Video Camera Slider Sale