I'd wait a few months if I was you for Nik.
Is there a rumor about an upgrade to Nik or a firesale as Google dumps it? Is the 15% discount still available?
I was going to add the Nik Suite to Lightroom. A friend uses Nik with Photoshop and his experience and advice is helpful to me.
EOS: 7D (2, 1 gripped), 50D gripped, 580EX II + CP-E4
EF: 500 f/4L IS, 100-400 L IS, 70-200 f/4L IS, 28-135 IS, 1.4x TC II, EF-S: 15-85 IS, 10-22
5D3, 17-40 L, 24-105 L, 24mm TS-E II. S100 p&s