I use a McDaniel's glow driver (
http://sonictronics.com/xcart/customer/home.php?cat=308 ). I set mine to come on at low throttle because I don't have any spare channels on my radio but it can be set to run on its own channel. Mine (I have 3 -- 2 in planes and 1 for the bench) have worked great for years. And they're ... how do I say this ... let's just use the word "resilient" ...
Get a NiCd with as high a capacity as you can.
Greg