Thankfully, on October 21st, 2014, VMware released the VM Remote Console (VMRC). You can use this to open a console of the VM from the web client. You can find links to it from within vCenter while viewing a VM. Check you've got the latest version of vCenter to get these links.
During the install, it gives you the options to check for updates on system startup.
After the install, it will prompt you to restart your system.
Using the VMRC, you can view the console, and it brings back most of the functionality from the C# vSphere client (remember the good old days?), like power off/on, attach CDROM, and the usual 'Edit Settings' window to even add/remove hardware. You can easily change the network portgroup from the menu, without going into the 'Edit Setting' window. The best thing for me, is you can open a console window, then power it up to see either choose the boot device, or get into BIOS.
|Using VMRC - an easier way to manage hardware settings|
This is a great addition to the web client. Install the latest version of vCenter and check it out.