Good idea Joe! For low draw apps like an LED array - those'd do fine in a protected environment. With the grease and what you're doing there - they should do fine - likely for quite some time.
I'm into 'Anderson PowerPoles'. I started using Molex type Nylon connectors back when (it's what was easily obtained at the local Shaque de Radio). But for most of what I do - ham type stuff - they've prooved to be seriously inadequate on many levels.
Power Poles look like this:
More info here: http://www.andersonpower.com/products/pp/pp.html
and user supplied stuff here: http://home.comcast.net/~buck0/app.htm
They come in sizes rated from 15A to 180A, single and multiple connductors. They'd be serious over-kill (amperage wise) for what Joe's doing there. But radios, driving lights, other farkles with any kind of load or devices that are frequently discoed and reconnected - PPs are way more desireable.
I'd also suggest *not* using RJ type connectors for anything that draws more power than an LED array! Those itty bitty conductors won't take much power at all. Suggested limit is 0.577 amp for power transmission on 24 gauge wire.
PPs also perform better in use than Nylon 'Molex' type connectors. Special over time and frequent connect/disconnect cycles.
Problems with Molex type are the more connect/disconnect cycles they go through, the poorer the connection gets (usable cycles counted in the hundreds). The female 'cylinder' expands each time, resulting in an air gap. Poorer connection, corrosion opportunity and creates a space for environmental contamination that makes it all worse over time and use.
Power Poles are rated for multiple thousands of connect/disconnect cycles. Self cleaning contacts are reported by some to decrease joint resistance with use! (not sure I quite buy into that, but it's possible). Not only rated for higher current, but they provide a much more robust physical package. Vibration and other mechanical mechanicals are better withstood, special over time.
Like many things in life, each to their own - use what you're comfortable with. Just be sure whatever you use is rated to support what you're doing.