Link directs you to the Playstation US blog with all the information.
At time of posting xe.com converts the prices to be around £3.18-£4.79 depending on the game purchased.
It's fairly easy to make a US account (as well as a JP account for those who wish to make one) on a EU PS3 and one can add funds by buying a US Playstation network card.
One thing that you should take note is that recently Sony US ran a promotion to give "Flow" for free over PSN which was exclusive to US/Canada residents, they upheld this promotion by checking people's IP if they were geographically located in the US/Canada. People outside the US/Canada who persevered manage to get "Flow" by using a proxy.http://www.hotukdeals.com/item/609092/ps3-flow-free-today-only-on-the-psn
If PSN US do plan on using this method to filter those who are outside of the US/Canada then use the proxy method - if Sony implement another method then... well this is why this is a heads up so it's up to you whether or not you want to try get some games at 50% off.
Additional links with information and quoting from the "Go to Deal" link:http://kotaku.com/5474530/capcoms-psn-range-going-for-a-songhttp://blog.us.playstation.com/2010/02/marvel-vs-capcom-2-50-percent-off-and-a-comment-contest/
"...I have something cool to announce. Starting tomorrow (2/18), we will be discounting some of our popular PSN downloadable games by 50%. Thats right. Five weeks. One game a week. Fifty percent off!
Heres the sale schedule:
* February 18, 2010 Marvel vs. Capcom 2 for only $7.49!
* February 25, 2010 Super Street Fighter II Turbo HD Remix for only $7.49!
* March 4, 2010 Super Puzzle Fighter II Turbo HD Remix for only $4.99!
* March 11, 2010 Age of Booty for only $4.99!
* March 18, 2010 1942: Joint Strike for only $4.99!
manutd08 has highlighted that this offer (looks like for only two of the games that are offer?) will also be on the EU store:http://blog.eu.playstation.com/2010/02/18/%E2%80%98heads-up%E2%80%99-playstation-store-update-18th-february-2010/
# Marvel vs. Capcom 2 (was £11.99/14.99 now £5.49/6.99)
# Super Street Fighter 2 Turbo HD (was £11.99/14.99 now £5.49/6.99)