where shoud I start?

I am a newbie to TB but come with lots of Telecoms and VOIP experiance.

until last year I was employed by Swyx GMBH, a company that makes a Win32 software IPPBX, before this I was at DeTeWe for many year (Now purchased by Aastra) so my understanding of VOIP and ISDN is pretting good.

over the last 2 weeks I have been trying to teach myself TB 2.4 and have been amazed by the whole project. The installation was very simple from the Bootable ISO and then basic configuration was simply to follow with the expection of SIP Trunks which took a little more work.

I have scanned Trixbox Made Easy and the online video's at http://asterisktutorials.com/ but yet I still seem to have lots to learn and therefore turn to the forum for help. I need a push in the direction of any matierials that would help me to really getting the most out of the system.

Things I am after are items such as follows:
Advanced Inbound Routing (based on a calender input or an SQL database)
Advance user options, SLA (if this works), Night Service Displays - I have 3 480i handsets
Information on YUM
How to add third party products

Any help would be great, I am sure given time I will be a contributor to this forum.

Thanks
Ian