VPN project

I hope this is the right place to post this since I am only asking for advice or some help and not someone to do the project for me.

Ok,the thing is that I am supposed to turn in a project on VPN class.
I already have some themes provided by the teacher and I need to pick 1 as a primary choice and 2 more as additional in case the is already selected.
Here are the options:

[1] Security problems with VPNs and ways of dealing with them.


[2] Security mechanisms.Methods of encrypting and encryption algorithms that are being used for the secure transfer of data in VPNs.


[3] The 3 main categories of virtual networks are:Secure,Trusted and Hybrid VPNs.Describe their difference and name the protocols that they support.


[4] Computer hardware for virtual networks.Description and analysis of the way it functions and of the way it accomplishes secure data exchange.


[5] VPN,ATM,frame Relay and Leased Lines,four different networks for the creation of a WAN.Compare the technological advantages and disadvantages of all four of them.


[6] What is the QoS (quality of service) that is provided by a network ? Can VPNs provide high levels of QoS to their users ? If not,in what way can this be improved ? Compare the QoS that is provided by different types of networks.


[7] Definition and analysis of VLANs,network  architecture that they use and general study of different types of VLANs.Comparison with VPNs.


[8] MPLS:Definition,services characteristics,usage of IP-VPN,technologies of accessing them.


[9] Analysis and study of Layer 3IP Tunnels,a technology that provides VPNs for corporations.Basic principals of tunneling .Other protocols of tunneling.


[10] VPN-Firewall:analysis,comparison,advantages,disadvantages.


[11] SSL (secure socket layer) versus IPSec VPN:Analusis,comparison,advantages, disadvantages.


[12] The creation of a IPSec-VPN.Definition,protocols,ways of creating it and hardware.

I trust that many people here may have some experience on networks so I could use some recommendations on what I should pick.

It is gonna be a power point presentation of 15-20 pages tops so,I need a subject that has enough information on the internet that are simple to understand and may be include some good graphic designs for my presentation.

I need to name the title of my project by NEXT WEEK so if anyone is kind enough to recommend a subject or even provide some links where I can get some good info,it would be most appreciated.

So far,I am thinking of [5] or [3] and [11].
Please help ! Thenx !