Forget the ryobi if you want to get your work done with tools that can handle it, not ones that are for light duty homeowner stuff.
I have 98% makita....here is a link to the vac (yes, they do have one) i have it and it's great...they have either vac only, if you already own makita battery and charger or they sell full kit...
http://www.amazon.com/Makita-BCL180W-18-Volt-Lithium-Ion-Cordless/dp/B0039ITKLU
Check out this pic of my enclosed work trailer....2 shelves of mostly makita power tools (cordless)...also have some corded sds drills and what not, not in this pic..
You can see the vac in this pic though