I don't know exactly what you mean by "bulk" info, tho I have been accused of being somewhat bulky!
There are articles on the homepage, discussing basics such as substrate, ferts, lighting, CO2. Rex has his guide, and several members have tons of info on their home pages. You will find a ton by searching within the general forum for general queries from newbies in the past. Depending on various members' moods at any particular time, some garner lengthy detailed answers full of info and links, while others might get more of a brush-off. And there are tons of other sites and forums out there with all kinds of info.
This site and forum are what they are. We make no apologies for not being anything else anyone might wish we were. Maybe we could restyle ourselves into an all-inclusive planted "how-to" tutorial. Someone make a note to bring that up at next years budget allocation meeting.
In the meantime, if you ask specific questions, we'll do our best to answer them.
It will cost you little to buy some java fern and anubias nana and tie it onto your rocks or whatever. Those 2 plants are pretty bulletproof, tho they will do little other than possibly survive until you up your lighting. You will have a tank with some live plants in it, but not a planted tank.
And any plants will have difficulty in your current set-up. Those plecos and oscars alone will be quite a bit (too much) for a 45 gal. I don't know anything about "angel cats."