There's a really great progressive jackpot opportunity at the moment at
888.com.
Their Royal Diamonds progressive video poker is over $61,000 and climbing. At the current level, that game returns 106.2% with the appropriate strategy. (That's actually an underestimate, because the software I use to analyze it doesn't have an option to exactly analyze this game.)
If you use just the normal Jacks or Better strategy, you still get a strong 104.5% return.
The game is a dollar game, so it costs $5 a hand to play. It is a short-pay "8/5" Jacks or Better game, so the game can be tough on the bankroll. Still, it is pretty rare to see an edge this big.
You can check at SlotCharts to make sure the jackpot hasn't been hit before you sign up.
Here's the link to the game there:
http://www.slotcharts.com/slotinfo.php?id=1408
Or, you can go straight to
888.com.