Ohm Walsh Micro Talls: who's actually heard 'em?

Something like this: http://www.amazon.com/gp/aw/d/B0028RCZSS

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But how do I deal with the whole 2 prong thing? Right now I have my power strip plugged in using a 3 to 2 prong converter. Is this detrimental to sound quality?

My vote for the biggest bang for the buck in power conditioner is from Alan Maher designs Quantum mini. These sell for $40 each and are placed on your circuit breaker(normally 4 are needed and each are connected to the ground). This conditions the whole house. You will hear an overall relaxing sound quality with purer extended highs and a larger soundstage.

Unfortunately I rent, so anything like that is going to be ruled out for now.

Does a PS Audio Duet make more sense for what I'm asking than an APC G5?

AFAIK, Duets are limited to leftover stock - both the Duet & Quintet (which I use) are out of production. A replacement for the Quintet is soon to be available, at $500. I have not heard anything about a replacement for the Duet. I would look at this one: Furman PST-8 Power Station Series AC Power Conditioner, just about $100 on Amazon now. I have no experience with this unit, but Furman has a good reputation, and I think it is returnable if you buy from Amazon.