Coming up with an original-sounding slogan is hard. Especially if you want something that doesn't give fifty million google hits.
So don't let that slow you down. Just put the site up and concentrate on creating content. Leave the slogan out for now, (or use it, doesn't matter) and maybe inspiration will strike later. It's more likely to, after you stop deliberately straining for it.
Um... and yes, I think it's really cheesy and stale. Sorry.