Language customization

[tslav]

I have some general customization issues on my website and I would like your help about them.

My store has two different domains for two different languages, Hebrew, English and I would like to make customizations regarding each.
1. When user enters the URL X.com I would like them to be directed to the store's English website. When users enters the url X.co.il I would like them to be directed to store's Hebrew website.
2. For the Hebrew language I would like to display product price including tax. For the English language I would like to display the product price without tax.
3. I would like to change STORE_NAME, STORE_ADDRESS parameters based on language selected.

I would be happy to receive help regarding these issues.

Tzachi