Yeah, for the most part, make sure you get a
converter, not just an adapter. Otherwise, you could fry your equipment.
However, some laptops, video game systems, etc can handle 240v. It should say on the device, usually on or around the battery, what voltage levels it can handle. Someone else might have more expertise on that 'cause I'd just have to google it again. I read up on it and decided to not bother bringing my lappy overseas
As far as the outlets themselves, I know Germany's got the two-plug outlets, but I'm not sure about Finland.