When I first started playing cash ring, I'd play at the micro penny NL tables on PS. You see a friend of mine gave me a few bucks and I just thought I'd build from there.
I don't like the idea of spending hundreds and hundreds of my hard earned dollars on poker

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It really didn't take that long to tripple what he gave me, then i tried the higher limit (at the time it was .1/.25... they didn't have .05/.1 NL tables back then), and got CRUSHED. Emotionally I wasn't prepared at all. So I moved back down and rebuilt.
Anyway, penny tables offer good experience on fundamentals, since all you really have to do is play tight aggro and it should be very profitable. Well, maybe not profitable... but you can build up consistently and then move up to the better limits shortly after

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Cheers,
Gutzz