what lv purse & accessorie(s) are the best 'bang for the buck'

Pretty much the same as what everyone else is saying... the Speedies, Pochettes, and the Batignolles line. Although really if you think about it they're incredibly basic bags with little detailing and work done to them (at least with the Speedies & Pochettes.) You just take a piece of canvas, slap a strap & zipper on, and you are good to go! LOL but I love them!
 
get a speedy and an agenda (it can be a planner, a wallet and a notebook in one)

oh yeah and a cles which can hold coins and keys

if you like the bucket you can get a bucket and the small bag can be a going out bag or a cosmetic bag, an agenda for reasons mentioned, and a pretty cles!
 
Speedy 30 and the Bagitinolles H or V. If you want a wallet, get a mono one without a lot of hardware (ie.. not the Koala). I find them reasonably priced for LV wallets and the quality is excellent.
 
The Neverfull bags, mono/damier/azur Speedys, batignolles series are probably the most reasonably priced bags, considering how practical they are too.
As for accessories...cles and key holders....that's it.