Sorry, I'm also late to be giving advice, and you've already had excellent suggestions. Lovehoney do a lace blindfold that only partially restricts sight, if a full blindfold is too scary for her - http://www.lovehoney.co.uk/product.cfm?p=32251 - Blindfold and/or restrain her and then make her wait while you tell her what you're going to do to her if she promises to be good. Make her promise repeatedly. Or, if she's not too shy, make her tell you what she wants. Then make her wait while you decide if she deserves it. Tease her with different textures and temperatures.
I'd definitely suggest soft restraints. You don't even have to buy a set if you're not sure she will go for it - a soft scarf will do. I'd also suggest just holding/restraining her with your bare hands. It doesn't have to be too hard or uncomfortable, and it has the added advantage that you can loosen your grip immediately if she doesn't like it. Or tighten it, if she does. ;)
Depending how body confident she is you can tell her what to wear...... or what not to wear. Tell her to strip for you while you stay fully clothed. Tell her to masturbate while you watch - you said you enjoy watching her orgasm - and tell her you won't join in until you've seen her do it to herself.
How vanilla is she? How dominant do you want to be? Obviously you're talking about this with her already, so you're getting somewhere. Hope it works out well for both of you.