I want to be able to capture close ups in the natural light mostly with some movement as
One problem with the answers you're getting or will get is that your combination you are using is just about the best for what you say you want to do. You'd have to spend a lot of money for a marginally better combination for a fast portrait class lens. That pretty much is what a 50 f/1.4 on a crop camera is.
My advise would be to either invest is a better all-around lens or in a true portrait lens. The portrait lens might be the 135 f/2 or 85 f/1.8, the first maybe too long but I like that.
A great all around lens might be a Sigma 17-50 f/2.8 OS HSM. That way you'd have the versatility of a zoom with OS stabilization and the speed of hypersonic focusing. You'd have a good wide angle too. The f/2.8 should be fast enough for most situations.
Like others have said, you might want to consider flash photography. I know it can look harsh when improperly done. Get one that can aim in any direction. Now consider the flash just to be the creator of a blob of light you'll use to light your subject. It's not to be used to light directly except as fill flash outdoors.
So, a bright blob of light on a ceiling, wall, curtains, or sofa becomes a beautiful soft box type studio light source. Don't call it bounce or you'll try to think of angles or what the background is made of. Just think about using the flash to create blobs or softboxes of lights on something else. If you want a nice side light, you might want to put that blob high up on a side wall. If you want side with some hair lighting, put that blob the same place but a little higher so some of the blob is on the ceiling.
If you want dramatic side light, aim the flash sideways at a close wall, sofa, curtains or something. When the blob is smaller, it's more direct, less soft. It's still not a harsh direct flash, just more focused than a distant blob of light. Get the idea? You might wish to look at a tutorial in studio lighting to get some ideas what you can do with a flash used in this way. The principles are the same.
http://www.portraitlighting.net/examples.htm
http://lumitouch.com/benstudiotutorial/index.html
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Cheers, Craig
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