[quote name='jeffx']OK so there aren't any unannounced price drops then? If I just stick to the PSN blog + xbla DOTW threads I'm covered?
What are the odds for Shadow Complex and Guardian of Light to go on sale by the end of the month? Should I just get them anyway??[/QUOTE]
PSN almost never has unannounced drops, so that thread will take care of everything you need. XBL has a few more unannounced drops, but they're generally posted in the OP of that thread, but you may need to check that thread more often. Xbldb.com is the website we use on that thread to catch unannounced drops, so get familiar with that site and you can see EVERYTHING that gets a price drop.
No way of knowing when games are going to go on sale. Obviously the chances are low that those 2 titles will go on sale considering there's easily over 500 titles on each XBLA and PSN, but both those games have been on sale in the past and will go on sale again sometime in the future.
Plus, I think Lara Croft GOL is free with PS+ right now, which is easily the best thing in digital gaming at the moment. $50 for a year subscription is a great deal.