You get either and you’ll in finance/accounting for a long time, unless you want a massive pay cut compared to what you could be getting. I assume that you could go into managerial work or project management work.
In terms of ACA vs ACCA, go for ACA. For more detail as to why see here http://www.ion.icaew.com/talkaccountancyforum/22442
In terms of numbers, ACA clearly wins:
More than 84% of FTSE 100 companies have at least one ACA on their board. Of the 20 professional accountants on the ‘2009 Financial Power list’, 75% are ACA qualfied. 55 FDs in the FTSE 100 are ACA qualified vs 5 who are ACCA qualifed (from Accountancy Age April 2009)
Basically, ACA is better respected and more recognised. Hope this helps