I grabbed the initial free episode from iTunes and have been hooked since. It still seems a little rough around the edges but, otherwise, very good.

Is it anything like the X or Rockford?

Ummm, actually, it's sort of like Rockford Files meets Angel.

Harry Dresden is a Private Investigator who, also, happens to possess magical abilities and advertises in the Yellow Pages under "Wizard". It airs every Sunday at 9pm on the Sci-Fi channel (or is downloadable via iTunes where I first noticed it).

I meant to watch the first episode but I forgot

That's a really cool show.

How much is it?

It's a $1.99 per episode on iTunes (or $19 for the whole season).

I was surprised how much I have been enjoying it. It's the only thing besides Heroes that I've really been anxious to see each week. One thing I've noticed is that whoever does the casting for that show must be a genius because even when the script is a little rough the actors still "bring it home".