A bottling bucket would be pretty useful. You could go BB, but it's nice to have the wide open top of a bucket. Especially helpful if you are aerating your wort with a collander. You just rest the collander on top of your bucket and pour the cooled wort through. Helps for quicker start times after pitching your yeast.
And +1 on the autosiphon. It's well worth the 8 bucks. Makes siphoning a beeze.
Another item I picked up recently was a wall paper tray. It's cheap and gives you a good place to sanatize your siphon, airlock, etc. I used to prop my siphon up in carboys and buckets, but with the tray, I just grab it when I need it and toss it back into the starsan when I'm done.
That said, you have plenty to make beer as is. And, you'll be putting plenty of money into the hobby over the years. So, I say go brew something!