Quote: Originally Posted by
dbanerian 
I recently purchased the elm327 from an ebay site for $34 w/shipping (but-it-now cost). As far as double buffering??? - don't

see any with real-time updates. Interfacing to XP OS is simple and used scantool.net free version for code reading and real-time diagnostics. Read earlier that the ProScan 5.1 software is good, but interested if anyone else some ideas on the best software under $100???
Dave
I'm sorry I don't understand did you like your ELM from ebay? See the way I look at it as long as it works it's all good, no need to spend hundreds of dollars and if it does die well its only 40 bucks at least you can say you did what you had to.