I'd like to easily pull a file from my computer from a task link in the same way I pull up an email from a task link. Is this possible? I don't have a premium account.
Unfortunately, that's not possible right now, but thank you for your suggestion, we will consider implementing such option in the future. You're welcome to vote for this request in our Votebox: http://todoist.com/Vote/showProposal/153/
Please note that Todoist Premium would allow you to upload files to task notes directly.