tom, remember dac's aren;t magic, you get what you pay for in most cases. even the scot nixon / nos dac's are base on designs costing a few grand (47 labs, audio note, etc.) so you can save money but it's rare. if i were you i'd be looking for a dac that cost between 2-5k in the late 90's these should now be available for about 500 quid to 1.5k which seems to be about your budget. you may also want to consider - the msb link dac(s), perpetual technologies - with upsampler and hefty psu upgrades, wadia (pm tony for which ones), chord dac 64, c.e.c., also there are some good looking (no idea what they sound like though) dacs comming out of china nowadays. to be honest if you like the naim sound i'd be looking at something that uses a multibit dac chip, has no upsampling and minimal (4x or 8x) oversampling and careful attention paid to psu's. cheers julian