A small hack I've done in the past is to run a 'click link' trigger on that email to see if anyone clicks it, if they do then follow-up with an email saying "sorry about that, the link was wrong, it should be this: " -- while this isn't 100% going to catch everyone, it is a way around blasting out a second email to people that otherwise may not have clicked it.
Had to get even more ridiculous once and redirect the entire branding domain to our own server so I could rewrite a typo in a tracked link.
I like almost all the functionality in Marketo more than Exact Target, but correcting links after the send was one feature in ET that I miss. All email links in ET are set up as a redirect to begin with, so you could always change the redirect location afterwards.
I have been using this service https://linktrack.info/link get the result you are looking for. The downside is you have to be using their link from the start and there is a lot of manual data entry. They do have an API that could do some of the heavy lifting.