Here are the Essential Spelling Lists on a great site called Spelling City. You can give yourself a Spelling test by just clicking on the links below. You can play Spelling games as well. You just click on 'Play a Game' and it will take you to the games. 'Hang Mouse' is a really good one. Only the free ones are available.
Remember, keep away from the 'pop up' games on the right hand side.
Just stick to the 'Spelling Test', 'Teach Me' and 'Play a Game' buttons on the yellow part of the page.
Happy spelling!