Yeah, both of those look like they'd get your job done at a reasonable price. Don't know anything about either brand, but the specs look ok.

As to cleaning the boards, warm water should be your first step to get the worst off. A cheap toothbrush can help. Avoid detergents beyond those that you'd be ok with on your skin (ie washing up liquid should be ok), and make sure that anything that you do use is well rinsed off. Allow the boards to dry thoroughly before plugging them back in - preferably a day or two in a warm dry envrionment to ensure that all trapped moisture is removed. Be careful if you decide to use your airing cupboard for this - nylon and dry air can create a static hazard.

The only other thing that you should use to clean boards is isopropyl ethanol. This might be required if there is old flux residue present.