I have just bought an incredibly similar looking machine here in the UK here: LS3020 pro Desktop laser engraving and cutting machine laser engraving and cutting machine with software [LS3020 pro] - £1,125.00 : laser engraving machines laser cutting machines, HPC laser LTD
Mine has a red casing, but looks identical. The upgrades I intend to carry out (Some are on the way already!) Include a 10 turn potentiometer knob (here: Rapid Electronics - Electronic Components > Resistors & Potentiometer ), an hour counter 999999h capacity for the laser tube and a 99h59m59s counter with reset for current job time. Also going to fit a flow meter, and already have temp gauges for the coolant temps.
I got mine 3 weeks ago, and have done quite a bit with it! The ease of sending stuff to the cutter with NewlyDraw is simple, and I do the designs in CorelDraw for anything complicated.
I would love updates in here to any arduino mods you do, I too have a makerbot (#28) but I must confess that it gathers dust as I do not have the time to fit the HBP and mk5 extruder upgrades!