Software to access pc from work on my Mac remotely?

Be careful Check with your IT department (if you have one), or your supervisor and get written authorization. Many workplaces may not want users accessing work computers remotely, and if you don't have authorization to do this it may be grounds for dismissal.

Remote Desktop is definitely the most efficient and free, but it will require that you can "get on" the work network via VPN or some other "tunnel" through the firewall.

Other options like Teamviewer and GoToMyPC abound and may work better if you don't already have some method of tunneling through the firewall.

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