Best Practices for URL Rewriting

[vji_2005]

I won't to do URL rewriting for my site.

I have couple of questions:

my url is for example : http://www.example.com/index.php?id=ied&uid=skwii==

I thought of having my url as

http://www.example.com/home/username

1)How long could be url? is there any restriction, for search engine?

2) can i have like http://www.example.com/home/andrew james or do i have to do remove the space?

Is there any other way of doing it?

Regards,

VJ

[freewebsiteideas]

Shorter urls with no spaces in folder names are better for seo purposes.