I am wanting to know which would be a better way of handling things
URL vars, as say if you made a CMS, and you wanted to add news you'd have a URL as such:
http://www.example.com/admin/?act=addnews&id=1

Or shall I go with doing this:
http://www.example.com/admin/news.php?act=add
or
http://www.example.com/admin/news.php?act=del&id=1

:S??

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VillageIdiot can have my babbies ;d

how about www.example.com/admin/news setup a rule in htaccess so the page can be found by search engines

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no signature set

Not yet, I'm a noobie at MySQL, so this is a bit tough for me. :S

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VillageIdiot can have my babbies ;d

Best to separate the files, makes for easier to manage and read code.

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Yeah, sounds better.. :]

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VillageIdiot can have my babbies ;d

There's no need to make the CMS SEO-friendly. Likely you don't want Google into your CMS, right? So you should not waste time on that. Just keep it simple with different files to keep it well organized.