I recommend checking out
CoolHomepages for some inspiration. If it's professionalism you're after, you really should compare your site to Anandtech, see the difference?
Here's a few pointers:
White space is your friend.
Remain unbiased if you really want to review hardware (unless you want to buy all your own stuff to review).
Use smaller optimized graphics
Get rid of the flash, unless it ads something vital, don't use it.
Lose the javaScript no click, it's annoying (Not like buy.com or any real prof. site uses it)
Splash pages lose visitors, so annoying.
Read up on the latest HTML, your designs looks first generation.
Get a book on web design (Hillman Curtis' Flash Web Design and maybe a Computer Arts magazine)
Why would someone want to fear a video card? Is it going to try to eat them? My Hercules Geforce 2 is rather placid, it hasn't tried to kick my ass lately. And if it's a gothic look you're after, forget about it, you have a lot to learn.