I know Sheldon favours Eli, but I moved from Eli to Profoto a couple of years ago (full disclosure: have an Acute B600R kit for sale here). Owned various Eli monolights and the Quadra and build quality (or lack thereof) of the Quadra was the last straw (for me). Also grew to dislike the Eli locking system and teh fact always seemed to have to modify the swivel mounts to get them to hold with any bite.
Now run Acute packs, Compacts and D1s and LOVE them. Built like tanks, dead-nuts reliable, will hold ny modifier regardkess of weight/size, the locking collar is (almost) worth the price of admission in and of itself -- and mods, etc are avail at any rental house on the planet. Only downside is the price, but I buy used 90% of the time anyway. Profoto can also be used with any Eli modifier (they are nicely designed) via the Eli adapter or the new Eli/Profoto speedring.
The Ranger is a nice unit, great rep, two heads, but will be heavy vs. an Acute B or Quadra.
For small HD stands I like the Matthews Maxi-Steel. For an outside large octa-like modifier, I prefer something like the SoftlighterII as if gets ruined, it's small $$$. If I can get by with a beauty dish, I'll use it as they're less likely to go flying if wind picks up.
Best idea - find a store that stocks some various gear and get some hands on time. It's not small $$, so make sure your happy with percieved build quality, robustness of mounts, switchology, etc. These things are all personal taste.