If the themes that you're using are starting to look a bit dull, sure you can hit Google and do some searching for new themes, but chances are that you'll end up installing a bunch and deciding that they were, at best, of mediocre quality.
Compare it with a theme like this (only an example):
You'll be surprised how hard it is to find a good theme that doesn't have any sort of colour clashes, poor choice of colours, hard to read colour scheme, etc. So thats why it's great to see theme creators such as PiZero (who is one of the more notable names in the S60 field) with his simple and soothing themes for the masses.
Most of his themes are free (such as the one above). However, you can also opt for the "Premium Themes" costing at US$10 (or 6 Euros). These themes are more stringent in terms of standards:
Personally I would recommend this theme named "Silvery"; simple and easy on the eyes, without any of those fancy stuff prevalent on themes you find on other sites.
- Lightweight themes (less than 100Kb)
- Default icons by Nokia
- PiZero’s style combined with higher readability
- 100% SVG Themes
- Compatible with all The Symbian 3rd edition phones, including Nokia E90.
Nokia phones are the best phone investment that you could make. Year after year they have been providing quality phones for consumers. Unfortunately the new Nokia phones can cost you an arm and a leg, especially an unlocked Nokia N82. I found a great site to find unlocked Nokia cell phones from auctions. I bought 2 Nokia N82 cell phones for me and my wife, and we love them. Check them out at Unlocked Nokia Cell Phone Auctions. Just my 2 cents.