[Jeff M]

How about a nice scale to measure hops and salts?  Or equipment to make yeast starters?

+1 to this. if you plan on making high gravity beers, a stirplate will be great.  personally i would get the immersion chiller. i didnt use one for the first 10 batches i did. after using it twice i cant figure out how i got by without one.

[klickitat jim]

I would go with a one barrel system if you have enough credit lol. Ingredients if it's not that big. Yeast starter stir plate kit if it's moderate

[cornershot]

Don't buy a chiller. If you're the least bit handy you can make one for far cheaper in under an hour. Buy a book. "How to brew" if you don't already have it or maybe "brewing better beer " by Gordon Strong. Beyond that I'd say a 2 liter flask for making starters and a 6 gallon glass carboy.

[davidgzach]

Another bucket and the rest on ingredients to make lots of beer!   

Dave

[mpmccann]

As others have stated, once you've be bitten by the homebrew bug, you will never have enough equipment. I would definitely invest in something you will need in the future. Good luck deciding what that is my friend.