I've had both. The V7 are bigger and a nice upgrade. Much nice looking speakers too. (If you're not using a sub and could go bigger, I'd probably go to the mini monitor (used or new). If you could spend more $, I'd look on Audiogon for a pair of used Totems.) As for the Atom's, if this is a system you're really using, the upgrade is well worth it as your talking years of tech. upgrades. The V3 are old speakers. Two last tips. Check out TSTO.com as they had a used pair of V7 for $259 for a while on their site. Amazon had V6 for months at $249. I'm sure more will come arrive in time. Also, check out the stereophile article comparing V3 to V6. This will give you some idea but the V7 are an upgrade from V6. Anyway, enjoy!