A shop-vac (generic use, not the name brand) will work just fine for light-duty dust collection. Particularly when the dust stream is run through a cyclone collector.
The cyclone collector will separate the majority of the debris stream from the air stream making the vacuum's job easier and reducing the rate at which the filter clogs and needs to be cleaned/replaced.
A quick web search for "build cyclone dust collector" with turn up lots of written and video instructions on how to build one. Many can be built out of a 5-gallon bucket and a couple of hose fittings for around $5 (adjust based on your local currency). It appears from my current search that most of the 5-gallon bucket instructions are in videos, as I'm not finding written instructions at the moment. However, 30-minutes of watching videos will give you the right ideas and will save you $100s over buying a manufactured one.