Installation of packages (best way)
 

Hey,

have used Slackware for a while and have always installed packages manually by downloading 'em from 'slackbuilds.org' and making Slackware packages with scripts provided by same source.

But is there more optimal way to install packages?
Realized how slow and frustrating this is when there are couple programs with 10+ required depencies and feel kinda lazy to install all that.

Also I have 'slackpkg' installed but never were able to do anything with that...Have configured but it just tells me that no packages match pattern.
i.e. 'slackpkg install filezilla' -- kinda doesn't matter what I try to install since nothing ever matches any pattern.

I think http://sbopkg.org/ is what you're looking for.

It makes installing packages from SlackBuilds.org a lot easier.

slackpkg is used only to keep your system up to date. It's only purpose is to install/deinstall/upgrade software that is in the official Slackware repositories.
As dlachausse already pointed out, if you want to have it more automatic sbopkg will be the tool of choice, together with its queue-file feature.

You may be starting something akin to an infinite loop, but since you're familiar with slackbuilds.org, have a look at the excellent:

sbopkg.org

and its sbopkg tool, along with *queuefiles* (info found on the site), which for all intents and purposes, fully automates the installation of programs.

As is the Slackware way, you, as the brains behind your boxen, are still able to be in full control of the the whole process.

cheers,