It's not longer the domain of the big companies to have a professional, frequently updated website. With new content management software that is available on the market today, you can have a great looking website that can be updated in real time without any insane costs.
I've used Think Digital Media to provide me with some great content management software. They also host the site, at about the same cost per month as other hosting companies. They have a basic set up charge, which depends on the size of the website, but pays for the design and set up. The set up charges start around $300 for a 3 page site, and go up depending on the complexity of the site. In addition, if you are a retailer, there is an online store that is available.
The best part about this software, is once its set up, you control all of your content, and can change it on the internet in real time. No more waiting for a webmaster to change the site. Check out Sharen Realty GMAC Real Estate and McIntyre TV & Appliances to see how professional your website can look.