Easy navigation, easy accessibility, smooth finish, easy on eyes type of colors.. if you are going to list out the features of a good design you are going to take hell lots of pages for them.. So if you are going to choose from some web templates, or are going for a designer to design your site, just go through and that may help you to get a tip or two so that you can improve the over all look, feel and usability of your site. The users must appreciate the content, they must be able to access your web pages of their choice (yes, the web pages must be well linked.)
Yes, when choosing a template you have o be careful.. Like check whether the template burn the eyes of the reader. Check the co ordination of the fonts with the back ground colors. Check whether the color(s) used are burning the eyes of the reader. The other aspects are the font size, which should be normal and less strain to look at, the proper usage and maintenance of the available text area. Usage of graphics must be there, and if possible avoid the same. Some may have a doubt that a picture speaks a thousand words, and what is this guy telling, avoid pictures? Yes my friend, unwanted pictures take away the concentration of the user from your contents. So if you can convey the message in a word, do it and its better than those thousand words. More over the pictures make your website slow, the load time increases and not every one will have the patience to sit and watch the page loading. (Especially in the case of a dial up connection.)
If you are looking for some sort of good, but cheap templates then I would recommend you to have a look on dreamtemplate.com, they have some decent collection of the same. And don’t forget to grab the collection of free templates (they have around 300 of free templates in their collection). From free CSS templates to premium flash template, they have it all. In addition to the same, they have the PowerPoint templates, Word templates etc… Another offer that is ongoing I their site is the ability to access and download the template for one year that too for $59.95 per month. No per template charges, no download charges …etc. Just the one time fee and all the templates are you’re for free, at least for the next one year.