Web Hosting Forum - TheHostingDirectory.com

Hello,
Can anyone please suggest me a reliable USA/EU based hosting provider?
Will be doing annual billing so need a reliable provider. (have bad experience in past)
Need about 100GB disk, 1500 GB bw and fair share of memory and cpu. Budget $20-30/month
I currently have 4 wordpress sites to host, avrage daily traffic is around 10k-15k.
Can I rely on Exmasters.com vps solutions? Any reviews on them? Other hosts?

Thanks.

It seems to me right hosting plans are available from libertyvps.net and scalahosting.com.
I love them because of consistent professional quality and easy accessibility for all my site needs. Every staff has been highly responsive to my questions and concerns with clear, concise answers to my questions, citations of rationale for their answers, patience, and politeness.