I'm guessing you are Stateside with a budget of 4000? 4000GBP would give you serious choice this side of the pond!
But yes, I agree with the above - an SA (that's a Super Avenger by the way if you are really new to Breitling) is probably the biggest Breitling-bang-for-your-buck... period. However, buying one new from an AD it is slightly more than your budget, although you can haggle them down a bit far easier than we can in the UK. Some AD's may occasionally have second hand models but obviously you have no control over what they will have in stock. Mine occasionally does, as people will sometimes trade a watch in for something new, but I've never seen anything that's caught my eye, so unless you get lucky you could be waiting a while. Another option (again as said above) is buying online, although if this is your first forey into the prestige watch market, I'd advise only using reputable on-line dealers and avoid eBay. Interwatches.com, Prestigetime.com and Jomashop.com all seem to get good reviews and sell genuine stuff. Check the feedback section on this site for some reviews of dealers.
Just a thought but as another option instead of the SA, it may be worth looking at the Superocean Heritage. It's 46 mm across and has a very clean looking dial on account of it not being a chronograph. That one IS within your budget even at full list (I think).
Happy hunting.