First, an important question: why do you want to change your brand? What's not communicated properly?
A three-letter domain is quite rare these days, and that could give you some distinction. Also, digital media is quite bland, and that puts some pressure on the execution to make you stand out. On the other hand, you'll need some kind of story to put behind "ten" to make it memorable, IMHO.
In conclusion, it's all about execution :)