Shooty but able to hold its own in CC pretty much defines Marines. Some are more CC than others, but even they can pour out an impressive amount of firepower.
My suggestion is to just get the SM Codex and play around a bit. Pick one of the less common chapters (like the Mentors or the Hawk Lords). That way you have a recognisable chapter, without any preconceptions about playing style or which traits you use. You also have a recognisable paint scheme which you are able to check out before trying, and which you wont have to change if you decide to take, oh... Honour your Wargear (more devastators) instead of Cleanse and Purify (extra special weapons) for example.
If any of your friends or regular opponents plays Marines, ask (nicely of course) if he would like to swap armies for a night so you can have an idea of which units/combinations you like.
Last but not least, check out the army lists posted on the forum. If they are for any of the well known chapters the titles will say. Have a look at a few in the chapters which you are interested in, especially if there are lots of replies (that way anything which is too divorced from that chapter's fluff will have been mentioned {I remember a mechanised force a while back which was apparently Raven Guard}).
My suggestion is to just get the SM Codex and play around a bit. Pick one of the less common chapters (like the Mentors or the Hawk Lords). That way you have a recognisable chapter, without any preconceptions about playing style or which traits you use. You also have a recognisable paint scheme which you are able to check out before trying, and which you wont have to change if you decide to take, oh... Honour your Wargear (more devastators) instead of Cleanse and Purify (extra special weapons) for example.
If any of your friends or regular opponents plays Marines, ask (nicely of course) if he would like to swap armies for a night so you can have an idea of which units/combinations you like.
Last but not least, check out the army lists posted on the forum. If they are for any of the well known chapters the titles will say. Have a look at a few in the chapters which you are interested in, especially if there are lots of replies (that way anything which is too divorced from that chapter's fluff will have been mentioned {I remember a mechanised force a while back which was apparently Raven Guard}).
