3G Internet PAYG in Bulgaria

[surveyor]

Other half has decided that we are going to Bulgaria for a week. Not convinced, but I apparently have no choice in the matter!

Being self-employed I can't cut myself off entirely so need to keep internet access. Having been stung in the past by hotel wifi, my current plan is to buy a 3g PAYG card for the Ipad.

Any ideas if this is workable or if I can buy a card in advance?

[TheHeretic]

No idea about PAYG, as mine is on contract. However, the big 2 companies here are Globul, and Vivacom

Both have prepaid PAYG sin things.