here's a useful site a friend put me onto :
http://www.video-poker-player.com/Video-Poker-Tips.html.
i've only played video poker 3 times but on the third occasion whilst following the advice from the site above i banked a little over $1000. i had hit something good and would have taken the money but after reading the tips page decided to go for the royal flush and "low and behold", it came in. haven't played since as i'm just too busy playing in the wonderful world of cards but if you can some free cash (and there are many offers), why not give it a go - it's fun !