Our website needs to accept credit card payments

Internationally: GBP -EUR -USD as currencies

However getting a Merchant Account could take 8 weeks for a start-up.

So we are looking into Payment Processors, which offer both:

Merchant Account + Payment Processor.

Who has experience with them ? Any pricing indication (or which one is the best and lowest in cost) ?

WorldPay www.worldpay.co.uk
Nochex www.nochex.co.uk
Fasthots www.fasthosts.co.uk
Webmerchant www.web-merchant.co.uk
Metacharge www.metacharge.co.uk

Paypal.com www.paypal.com - which gives the impression to a customer of not really a business company.

So any help ? Experience ? Any suggestions ?Any experiences ?