Are there any gotchas using a CPU with integrated GPU? Not talking about mobo chipset graphic, but something like an AMD CPU with embedded ATI graphic.

I haven't yet dealt with any motherboard with UEFI bios. I know there was a big uproar over Secure Boot. Is this going to give me any headache installing Linux? Is there any specific manufacturer that implements it more properly than others? Asus has been my goto brand.

I'll retain my current HDDs for storage but would like to use an SSD for the OSes. I'd assume that's pretty transparent as far as installing Linux goes? Anything I need to worry about here?

Any specific advice or recommendations will be appreciated. Thanks. 

Clint