Im with Orange too. I've always kept a an Oange PAYG sim for a second phone.
About the GPRS....you can browse from all day (midnight to midnight) for £1 if you're on Pay as u go. Text 'access' to 247 and you will receive a reply stating the time your offer starts. Best thing about this.....sometimes you will find you still have free access the next day or a few days after!!!!
Now if you use the GPRS for modem access that £1 can go a long way!
