I completely disagree with the person above who says not to use flash to display image galleries. If anything Flash is the technology to use to show large amount of images because of it's ability to load image data efficiently. You're options for managing how images are displayed are much greater than if you were using html and javascript alone. Slideshow Pro is one of the best bits of software out there for creating a gallery simply because it is so easy to customise, you just have to know how.
Slideshow Pro with its default skin isn't the most usable, however you are able to create your own interface for navigating images and galleries...
The following site, which I have worked on, use SSP for their image galleries and image management...
www.mackintoshrainwear.com
Take a look at the collections page to see what you can do with SSP, you'll see the interface is nothing like default
With regards to your site, I really like it. The emphasis is on your photography which is what people are coming to your site for. The only things that hold it back are a few usability issues such as forcing the window size on people, hiding the scroll bars and the obvious SSP navigation. The site I reference above has some similar issues but I pointed it out for to show what you can do with SSP.
The colour scheme you have is nice and the typography works well with it. If you sort the usability things out then you are onto a winner; a very clean, sharp professional looking website. I should also mention that if you are going to have a flash website that you should look into fallback content. That is content that users who decide to turn off flash or who don't have flash player installed will see when they visit your site. Take a look at the following tool to help you out with this. It's relatively straight forward and will also help with your search engine rankings as your fall back content will get indexed, where some of your flash content wont.
swfobject.
If you need any help or guidance then please give me a shout. Nothing more satisfying that helping make the web better
