Hi Kristal,
You can only apply for an ancestry visa if your or your husband's grand parents are British (other relatives don't count) or if your parents are British.
Unfortunately, the "easiest" way to get a visa is the
Working Holiday visa but as you mentioned before that is for people with no dependants.
The other work visa are quite difficult to obtain, there are different ones.
There is an online points calcutator (
http://www.ukba.homeoffice.gov.uk/pointscalculator) to see if your husband could qualify to any but to be honest even with a job offer I think he will not get a visa. That is because before an employer can only offer a job to someone outside the
UK (and EU), they have to advertise the job here and at the moment with the recession there are a lot of unemployed construction workers that would be happy to get that job !!
Work visas are restricted so that foreigners can apply only jobs that are on the shortage occupations or when a foreigner is highly skilled so that workers from outside the
UK (or EU) do not take jobs that British people can do.
hope this helps