Another strong recommendation for purchasing a REFURBISHED Agilent 1100-series DAD equipped HPLC system from Agilent directly (skip ebay!). An 1100 is 99% the same thing as a 1200 or 1260 system, but with a different # on the front panel. Over the past year, Agilent has literally been dumping fantastic 1100- series systems at less than 1/2 the regular price on the market. A full DAD system with QUAT PUMP (yes, get the quat pump as they are best for general purpose work) with ChemStation 3D software are being sold and delivered for under $20K USD. There is no point in buying a broken system off ebay or from one of the lab supply companies (who just buys the same at auctions). No repairs, comes with fresh lamps, a warranty, it will work perfectly and that is exactly what most customers need (because they do not have 10+ years of professional experience using and servicing the same). Great deal and someday they will stop offering the deal.
By the way, you can purchase a fully loaded 1220 DAD system from Agilent (BRAND NEW) for similar price (~ 19K). But why bother with a 1220 (which are nice systems), when you can get a fully upgradable research grade system like the 1100/1200 series.