I've never seen any evidence that smaller speakers are better for a smaller room, at least in terms of nearfields. I see this repeated a lot so that's why I mention it. While I'm not the most experienced audio engineer here, I have satisfying results with the Yamaha HS series sub and 5" satellites. I'd actually prefer the 8" because you can balance their bass response with that of your sub. If you have the money and time you can use more than one subwoofer to balance your in-room frequency response.
If you have the budget for Genelec then those are probably better, sight unseen. The SAM series, of which the 7030A is a part, incorporates some kind of calibration software. While I'm unsure of the prices, you can probably also get by with their 'classic' series and comprehensive treatment as well.