QUOTE(NumisMattic2200 @ May 13 2008, 08:02 PM)

Ok here is the scenario - I won these coins, seller says postage isn't enough to England, it was $2 originally but he's asking for $11 now. What should I do? He says I can cancel or pay the extra cash. Are these coins worth paying the extra $9 ??
I'll have to play devil's advocate here, but first, to answer your questions.
What should you do? Re-read the auction to make sure you actually read it correctly and did not make a mistake. If you made a mistake, drop the issue and keep searching eBay for bargains. If not, consider if you actually did get a bargain or not. If you did, then demand the $2 shipping. Otherwise, drop it and don't waste your money.
Are the coins worth paying the extra $9? Absolutely not. You are already paying a large price for the coins, and I must assume have bid that amount based on the shipping costs. Paying more will only add that much more to your over paying, as well as the possibility that you will now not receive the coins expected and have even further problems with this seller.
Now for devil's advocate:
Always read the auction
thoroughly! Understand everything about the auction listing because it is a contract. There are two things you must do before signing a contract: read it from start to finish at least twice; and, understand every item and term of the contract.
The seller specifically states, "International bidder DO NOT bid on heavy bulky lots (Note: s/h of 1 oz. – 0.9$)". Therefore, any auction that has a S/H higher than $0.90 is for domestic bidding only. Another way to read that is that shipping internationally will result in a $0.90/oz. charge, therefore a 10oz. lot would cost $9. Only the seller knows the true interpretation of that clause, but it's still part of the agreement. International do not bid unless you are prepared to pay high shipping.
Basically, you were not supposed to bid on the auction. I am assuming that the seller is either too lazy to set up shipping templates, and change shipping options on a per auction basis, or his listing software does not support varied shipping options.