MSCS options

[ElephantCart]

Your Location: Ireland, although I'm a US citizen (and not an Irish citizen, so no subsidized education)
Your Age: 29
What kind of degree do you want?: I'd far prefer a masters in computer science. I would consider an MSIT or MS in applied computer science. I'd like to avoid any business/management/leadership programs. I want to keep options open for a phd in the future. I can't see myself going that route but life changes and I'd like the option, so an MSCS is the best route, I think.

Budget: I have $20k in savings but my work will reimburse $5250/year and I'd prefer to use their money. Fast is the priority, followed by cheap, followed by easy.
Commitments: My pets and job
Dedicated time to study: I can study at least 20 hours a week during busy weeks and likely closer to 30 between sprints.

I completed a TESU BALS in natural sciences degree and the ASNSM in computer science a handful of years ago. I now work as a software engineer and would get a promotion if I earn a masters. I got the BA because I got a promotion just for having any degree but I know many programs require a CS undergrad. I do have calculus and 24 credits in CS. I could go back to complete the BACS at TESU, if necessary.

I'd really like to complete the masters in two years or less.

I saw GTech's mooc program, which is super cheap but many people are saying that it'll take much longer than two years to complete.

I saw a handful of UK programs which claim the masters can be completed in a year.

I'd like to keep the cost to $10k, or so, so my tuition reimbursement will cover it.

I've seen lots of options mentioned on the forum but I can't decide which one makes the most sense.

Any helps/ideas are much appreciated.