Email, DropBox, iCloud and iOS file sharing would all be ways that you can transfer your files to the iPad. Pages supports file sharing and you can set up a free iCloud account to transfer files from the Mac to the iPad.
IOS: About file sharing
Pages'09: storing your documents in iCloud.
And by the way .... Even of you are running Snow Leopard, you can still upload your Pages files from the Mac to iCloud. I can even use my old iMac running Tiger 10.4.11 to upload files to iCloud by using Safari and dragging the documents into the browser window.