There are a lot of random orbital sanders to pick from, but my two favorites are the Bosch and Dewalt. I have used both of these sanders for a number of years and both have been great. Recently Dewalt announced their new random orbital sander model number DWE6421. This new sander is a 5″ single speed sander. If your looking for a variable sander, Dewalt also introduced a new one with a model number of DWE6423.
As with their other sanders, this utilizes a hook and loop pad, so your existing disks will work with this sander. The sander only weights 2.9 lbs, so I am sure it will be easy to maneuver around. Now I haven't tried this sander, but I have tried the DWE6423 which is pretty much the same, but with variable speed. I have to say it has a nice feel and is very easy to use, but most of all, their isn't a lot of vibrations from the sander.
The DWE6421 uses a 3 amp motor that puts out 12,000 OPM on a 3/32” orbit. As with their variable speed sander, you can attach this to a dust collection system (DWV012 and DWV010) or you can buy a universal connector system. If you choose to use the provided dust bag, it does a fairly good job at trapping most of the dust. The bag locks into place using a ring. The sander will retail for about $64 and comes with a 3 year limited warranty.
Check out our DWE6420K Multi Speed Sander video