Is there a way to, when the Wii loads up, instead of going to the System Menu, the HBC is launched straight away (Or anything similar)?
Yes. If you can install BootMii as boot2, then you can edit the "bootmii.ini" file to automatically boot to either the BootMii menu, the System Menu, or the Homebrew Channel. To set it to boot directly to the Homebrew Channel, find the following...
AUTOBOOT=OFF
...and change it to what I have listed below...
AUTOBOOT=HBC
To boot directly to the Homebrew Channel in this manner, you will need to have an SD card inserted before turning the Wii console on. Also, this will not work if you only have BootMii installed as an IOS.
Priiloader may also allow this, although I am not familiar with that program.
Thanks.