Hello. The first thing I would recommend is tables and chairs. This may sound ridiculous, but I've seen company owners buy all of the hi-tech equipment and forget about the tables and chairs. Next I would say you need to have a laptop or SFF (Small Form Factor) PC. This must have some form of presentation software such as Microsoft Office. This will just run your powerpoints, and you will not need a screen. You will need a projector and projector screen. I would also recommend a laser pointer and remote control mouse. These will just make your job a little easier. Some people prefer to have a hard copy in front of them, so a printout for each of your staff is essential.
This should come to a MAXIMUM of £1750 + office furniture.
I hope this helped you!
Regards,
John D - JD Productions and ROGUE Gaming

Source: http://www.jdphost.com