I'd forgotten about the digital Birds, like the 4391A. Top notch gear, but pricey. Well, it's a Bird, so you'll pay accordingly. I'd also forgotten about the MFJ 849. Well, it's MFJ, so...
LDG made a nice digital wattmeter, which was well reviewed as I remember, but I don't think they make it anymore.
Telepost also offers the excellent LP500/LP700, which add some additional capabilities and a spiffy display to the groundwork laid by the LP100A, but they start off more expensive and the pickups are extra.
I have an LP100. Amazing meter.
Also have a powermaster and a few Birds, including digital Birds.
The LP100 (and powermaster) are always in agreement with the Bird. So much so that I tend to give those two meters more credibility than the Bird!
Great choice. Try the VNA sweep function in concert with a rice box. Wow! Couple in with ZPlots by Dan Maguire and you can calculate antenna feedpoint impedance from the shack end!
--Shane
WP2ASS / ex KD6VXI