BRosso1: The boss turned me on to this site, so I just wanna be able to compete with him,and maybe win now and then.
2 fold answer - the better the clubs the easier the game can be....if you understand what the clubs/spin etc can do. So get your boss to buy them for you as a bonus.
The downside, beat him to many times and he may sack you!
The time taken to get the level 83 clubs will take a while, and therefore the lower level G20s is the sensible route and they are great clubs, but not as good or long as the upper level ones (especially in getting the ball to stick to elevated greens).
As for wedges, MainzMan has offered great advice - the level 42 Pings are great. I tried them ages ago and were very good.
With the wedges, first look at the PW of the set you decide to buy and work back so you get an even spacing with you wedges. Often you see someone with a 105 PW and then have a custom wedge rated at 100 yards which is pointless.
Most importantly LEARN your wedges - so you know the distance they will fly, and roll using all shot types and spin.
Putters are personal and also vary depending on whether you are a ding or off ding putter. I have tried a lot over other free rental weekends and have stuck to the Nike. Why? I am used to it and I am to lazy t learn another putter (especially the math with different increments). Above all with a putter, stick with it and don't chop and change.