Probably way belated, but as someone who does have experience with massive massive roaches, don't bother with a shoe. It won't be heavy or hard enough, and then it'll skittle away from under the shoe, possibly toward you. Use something *big* and *heavy* - a huge glass jar of something, or a brick, or whatever you have around the house. If there's nothing that works like that, see if you have a Swifter (those flat-bottomed cleaning things that you put a damp pad around to mop). They're not much more effective than shoes, but they mean that you can jab at the bugs from a distance. :-)

Good luck. Roaches suck.