I got my tax return and I'd love to get tryout some keys and/or synth. I'd like a 3 octave unit, so it's not a giant hassle to take places. I really like the demos I've seen of the Micro Korgs, but I'm not a fan of the small keys. Also I'd like something that can sound like a regular piano/keyboard and do strings as well. Looking to stay in the $500 and under range.