I'd like to personally recommend Sheps from www.platinum-hosting.com for both your server needs as well as PHP development needs. I have utilized both of his services and will continue to expand my business relationship with him in the coming months.
I would like to offer you our services, and offer you to secure and manage your server. Our system administrators are RedHat and MySQL certified engineers with many years of experience. You are welcome to email me at the email address below with your phone number and I will call you, to allow us to analyze the system administration of your server. In addition, you can visit our site to obtain more information regarding our offerings and our system administrators.