Hi
Good question; how does one choose a wife or a husband?
The good news is that whatever template you decide upon you can change it as your site develops or tastes change (unlike the wife).
If you are just starting out and only need 1 template in the foreseeable future I would avoid the template clubs and pick one that was either free or a single payment.
www.joomspirit.com/Commercial-templates/Itemid-116.html www.joomlaplates.com/ www.joomlashine.com/ and of course the templates from
www.alledia.com/joomla-seo-templates/ I have also been impressed with the default templates as you suggest.
Pick one with enough module positions and roughly the right colour and you will soon learn to change font size etc.
Regards