Likewise vertical scrolling instead of horizontal scrolling. If you are a reseller and your homepage links to your supplier's site, one should seem like a seamless extension of the other. This applies to navigation, language, and look and feel. If your site is co-branded with your identity and the supplier's brand name, be sure the distinction is clear to your visitor. Quick download is critical.
Web users tend to be impatient.
Unless you only have visitors with super high-speed connections and browsers that never crash, you are making them wait. Not a good idea. On-site search engines. Visitors tend to prefer these over navigation bars to find what they're looking for. There are free ones you can download and install easily.