Hey bluetooth, here's what I would suggest:
1. Forget creating anything as technically complicated as the iwanexstudio homepage example you showed with fancy Flash rollovers, etc.
2. Use iWeb (part of the iLife suite) in concert with a MobileMe account. This is perhaps the easiest method to start with. iWeb allows you to create nice simple static site pages, and the MobileMe account gives you server space in which to put your website. Or,
3. If you are more adventurous, get an external host like hostm.com for example (which I use) and set up some server space for yourself. Then use either iWeb or Dreamweaver or RapidWeaver or any number of other page-creating apps to create the pages which you manually upload into your server space. Or,
4. Get server space (as above) and then hand code your stuff in Coda (from Panic) or something similar. This is probably the most difficult approach for a beginner in website creation.
For any of these, you'll want to use your Photoshop to get your images optimised for web use and then either incorporate them into iWeb-type pages or upload them manually (for the Coda-type approach, for example).
It almost sounds to me like you might be a photographer looking to make gallery pages, in which case I would highly recommend using Adobe's Lightroom to output some really nice gallery pages for you, which you then upload manually to your server and then supplement with your info pages created in something like iWeb.
If you want to learn a lot more about writing HTML code and how websites work, or
want to learn how to use iWeb and MobileMe, try the resource I really enjoy for all kinds of how-to learning,
www.lynda.com. You'll have to pay a fee (I pay for simple online-only monthly access) but it's well worth it. Another option is learning by using the apps' built-in Help files, or by reading through hundreds of text-filled pages on the internet, which although helpful, may take up quite a bit of your time.
Hope some of this helps.