SMD caps are unlikely to "blow" in any serious way. Far better to leave them exactly where they are and not get involved! To be honest unless something's visibly leaking, smoking or obviously "not quite right", I'd be inclined to leave it alone until it starts playing up.

As for replacing "thru-hole" electrolytics, it's not that hard. You just have to take care not to burn any of the PCB tracks (because then you WILL be up a faeces creek without any means of propulsion). There's loads of soldering tutorials around, and chances are a lot of them are better than my method!