I can probably find any of these at a regular bookstore right??
Or is there some site all you guys go on too??
For DC here are some titles I'd reccomend, I don't follow Marvel so can't say much on that front although I will say that Spiderman Loves Mary Jane is a delightful title.
Teen Titans, current series, you can pick up the trades at pretty much any bookstore and it's an awesome series.
The Spirit, an AMAZING new series by Darwyn Cooke. It's self-contained, and each issue is stand alone so it's easy to jump in.
52, the series is over, but the trades are out now (the first two, the last two are coming out soon) It's a greeeeeat series, and it had a weekly format which is uncommon for American comics. If you like weekly One Piece chapters, or any other weekly series, than the format and pacing should work well for you.
Secret Six and Villains United are two great titles, and pretty much ANYTHING written by Gail Simone is gold.
The Flash is back with issue 231, with a new story and new art and everything. So far it's pretty interesting.
Identity Crisis is really approachable, a great story overall, and a good starting point for entering the DCU. Alot of what's happening in DC right now started from Identity Crisis, it's really the jumping off point for most of the major events going on in the DC Universe right now.
And the BEST mini-series of the summer, if you ask me, is the Sinestro Corps War going on in the Green Lantern comics. It's pretty awesome.
And The Question series from the 80s, which is an amazing series, is coming ou in trade form this October so definately check that out.