Seems to be a surge in torch technology in the last year or so, when i looked into updating my upgraded maglites i was amazed at how how power you can get from such small packages now days.
Although there are very few times you'll actually NEED 500Lm+ i have found it to be extremely useful to have this at times.
Your best bet is to look to see what battery format you want then do some looking around.
As said for VFM Fenix really do take some beating.
They're a good range of lights from decent floods to excellent throwers, and although some brands are built a little more sturdy (my TK35 has been to hell and back, dropped many many times, fell off my MTB on a downhill at around 30mph, used when free diving and dropped into cars engine bays so many times i've lost count), it's a tough task to buy a bad light.
You really need to look around though as 100Lm (P5 i believe) is absolutely nothing.
Here's my current range of lights
From left to right
Fenix LD01 Stainless Steel, single AAA, 72lm
Fenix LD01, single AAA, 72lm
Maglite Solitaire. single AAA, TerraLux LED upgrade to around 20Lm
Mini Maglite, 2 x AA, with TerraLux Cree P4 upgrade, 140Lm
Mini Maglite, 2 x AA, with TerraLux Cree P4 upgrade, 140Lm
Fenix TK21 U2, 1 x 18650, 468Lm
Fenix TK35, 2 x 18650, 820Lm
Then there are my EDC lights
Bottom: Zebralight SC600, 1 x 18650, 750Lm
Top: Zebralight H600, 1 x 18650, 750Lm
Then there is my biggest light, the Fenix TK70, 4 x D cells, 2200Lm
The H600 only arrived a few days ago so i haven't really had to much time with it, but from last nights walk i'm very impressed.
Might seem like a lot of torches but they all have their job.
The various Maglites are used in various tool boxes and give enough lights for 80% of jobs requiring a torch.
The SC600 goes in my bum bag so is my EDC light
The H600 will be my hiking light
The TK35 i take hiking for the odd time i need a really decent throw, or if i'm a bit nervous walking in a certain area (on strobe mode it distracts pretty much anything from dogs and bears to the odd junkie going somewhere quiet on the mountain to shoot up.
It's also weighty enough and the right shape to use if the strobe doesn't deter them.
TK21 is really the only light that's a bit surplus, as the ZL's are brighter and smaller and the TK35 throws a LOT better, so that's currently staying in the car.
The TK70 comes with me when i'm taking my RC stuff out at night, ohhhh and to guide down stray planes
Cheers
Mark