Advice for low temperature cooking I want to try out low temperature cooking of some meat, e.g. beef

I don't have a reliable oven and am looking for advice before starting. Or alternatives to ovens.

I heard some people use meat in vacuum sealed plastic bags that they cook in a pot of water, (easier to measure temperature?)

What are the timings for weight/temperature combinations?

What dis/advantages does low temperature cooking have compared to grilled?

Anything else I should now before trying out?
Buy a slow cooker.  They're cheap, and it will cook your food slowly in around 6 hours.

Don't overcomplicate things:

http://en.wikipedia.org/wiki/Slow_cooker