huff daddy

So i'm about to swap out my spark plugs for some new ones and I was gonna look down into the engine with a bore scope and see how it looks in there. My question is.. what's a good bore scope to buy? I know the hand held ones are awesome and all but I think I'd prefer to save a little money buying the one that hooks into the usb on a computer. Anyone know of a good brand they used or heard of?