Hi I am interested on learning RouterOS, as i have the very basic knowledge in networking, is there anyway i can have the online training and is there anyone can share your experience about how good is RouterOS?

May i know how routerOS benefit on below setup?

Network cable are using CAT5E 100Mbps.
1 x 24 ports DES 1024R
1 x 24 ports DES 1024A
1 x Linksys LRT224 (router firewall)
1 x Dlink ADSL 2750E ADSL Modem
1 x Innacomm 3400v ADSL Modem
1 x Dlink NAS 323

besides on that, there are a lot of small 5ports or 8 ports normal switches connected to some other location for ports extension purpose.

My target plan want to improve the current network speed and prepare for future ERP system.