I was in the same boat as you at the start of the season - new job, bit of cash, new membership - so hopefully can be of help.
The non-priority members sales can be a bit of a nightmare - I'm sure you've seen the horror stories on other threads - but if you're like me and not really too bothered where you sit as long as there's a decent view, you should be able to pick up most tickets. They do the members sales in half-season chunks, one in June or July (can't remember) and one in November, with all home league games in the first/second half of the season on sale at once. As I say, this is my first season and I've got Arsenal, Spurs and City to come, amongst other smaller games. I've managed 13 this season, so unless they change the priority threshold next year, I'll be able to go in the priority members sale where I presume it's a bit less frantic (and should be on for my first home derby ticket)?
The members and GA sales usually go online at 8.15am, but get on the site at 7.30am for members sales days (ie. the next half of the season) and probably play it safe for 7.45 for general sales. You can get some marking done while the queue ticks down
. For the November members sale I was on at 7.45 and done with 6 tickets out of 9 (IIRC) for 9.10am. If I'm right, the late availability sales are 11am usually, but I've not needed one this year yet.
Aways - no chance. The ladder was dragged up a couple of years ago when we stopped being useless. I think the lowest the requirements have got to this season is 3 aways from last season. Stick to the RAWK exchange.
So as you can see, having started from nothing I've managed 13 home league and Oldham in the cup (on the ACS) and kept on the RAWK exchange for Villa and Stoke aways, and this is coming up from London for every game, so it is doable.