Deployment Software

Hi,

Can somebody please give me a suggestion on what Deployment Software is good/best out there? I work for a med-size web based company and I’m trying to find a deployment software that is not too expensive and yet provides the most capability. Currently we deploy softwares, patches, and files manually. Sitting in front of more than a hundred machines can be really tiring especially if you’re doing the same thing over and over again so can someone please help me and give me ideas on where to find deployment softwares?

Thanks in advance!