Sonosite reps seem very helpful at least at the conventions/conferences/courses (AAPMR, AIUM, AMSSM) I have attended recently. I am sure a refurbished sonosite would be fine for most peripheral nerve and MSK injections. The rep told me the ARMY docs use it diagnostically in combat zones and they have a very durable model they sell to armed forces.
At my program, we train on Phillips and GE units. IMHO Phillips is probably best for diagnostics but the new tower model sonosite is getting ready to put on market plus works on a completely touch screen interface like the iPad which is pretty slick.
DOctor Jay was looking into his new spot buying him a new US machine...what did you decide to go with?