Currently I am small scale, mainly for clients I design websites for. Lately, there seems to be an influx of new customers.....
I use Paypal at the moment, alot of my web design sevices are paid for using Paypal, it works and it is easy to use. What else is everyone else using?
Just curious...if my hosting company starts to get bigger, I'll need areal credit processing company!

What do you mean by real processing company?

A reliable Payment Gateway for internationnal custommer is: WorldPay.

But their rates can be a bit heavy for small companies.
Then you can begin with 3rd party processor as 2CheckOut or EchoInc or PaySystems.
From what i know only 2Checkout accept imternationnal custommers.
The only disgusting thing with these processors is that their name will appearing on the Bill and not the one of your company, but does that justify to pay 400% more ?

For small bussines paypal is ok

I'm with Revecom (paysystems.com) and I must say that their service is exquisite..what's the problem with their name appearing on the client's statement? I say that this is a very good solution for both small companies who's just starting out and also for big companies who don't want to spend a lot of money on extra options..

I've heard a lot of complaints about 2chechout.com
and of course the other 3rd party companies are implementing the new visa rules focring the merchant to pay $750 as a setup fee..and big no no!

I fully recommend the services of Paypal and 2Checkout.

I actually use Share IT forms, its really fast, secure and reliable, paypal seems to be used for smaller companies but is also effective as well.

PayPal is convenient, I like it.

Another place to checkout is: HostCharge

I must put down HostCharge, as I've heard many bad things. And when we merged with Invison World, they used them as well, and said it was very bad.

you can take a look with these 2: 2CheckOut or PaySystems. Them is really good and can be added into many billing system (modernbill, whois.cart, clientexec).

Good luck