I absolutely agree that you don't want to list it now just to see if you get any nibbles unless you're going to list it at a reasonable price, and put every effort into showing it and doing weekly open houses. Trust me on this, as we're just now under contract for our house that has been listed for 248 days (whee!).
The other thing that we didn't expect, was that after our three months were up with our realtor, we took our house down from Zillow for a week or so before re-listing it. When we re-listed, it didn't start fresh as "1 day on Zillow", it simply started adding to the days that she'd had it up. So if you're considering putting it up now just to see what happens, then taking it down and starting a fresh listing, ain't gonna work.
Truly the most important part is checking the comps in your immediate area (Zillow makes this a breeze), and pricing correctly. Have a super honest friend come over and tell you what needs to be cleaned up more, painted, or freshened up. We thought that we had our house in great shape, but my best friend was able to point out things that we'd grown so used to that we didn't notice. Now our house is noticeably cleaner/tighter than pretty much any other house in that price range. People comment on it all the time.
I don't think that you need a year to sell your house. I think that you just need to have it in great shape, priced well, and do open houses constantly. I also think that you need to list it at a time when people are buying (right now, as opposed to going into the holidays).