Confused by too many funds

[nun]

I'm 45 and I've managed to handle my finances relatively well making regular
after tax contributions to mutual funds and by maxing out my deferred contributions
with TIAA_CREF since I was 25. In both taxed and after tax accounts I buy index funds

50% domestic index fund
20% international equity index
15% REIT
15% bond index

Now I'm thinking about how to organize things for ER in 2 to 3 years and thinking about rolling over
funds to Fidelity as they offer far more products and services than TIAA_CREF.
However, I'm completely baffled by the enormous range of of bonds, fixed income, CDs
and funds they offer. Does anyone have any advice on the type of investments and allocation given that I'm 45, ERing in a couple of years, living in MA and I estimate that I'll be in the 15% tax bracket when I retrire. As I'll be in a low tax bracket I assume that invetsments like tax free bonds wouldn't be
too attractive. I also like the idea of putting 25% on my money in fixed income (maybe a CD ladder)
to damp out variations of the 75% of my money that I'll put in equities. As you see I have a general philosophy I'm just confused by the enormous range of products Fidelity offers.