Eyepieces and Finders Question.

[Rubberneck]

Hi there , I am starting out in astronomy and after lurking on Stargazers lounge for a few weeks, I have decided I am ready to dive in with a the 'Mighty Mak' Skymax 127 Supatrak. (As it provides great views, is a good starter scope for moon/planets/clusters– kinda portable and able in the future for a bit of light AP.). I had a few questions about other stuff

1. The finder that comes with the 127consistently doesnt get good reviews. Can you provide a recommendation for a basic red dot finder?
   
2. I know nothing about eyepieces save that the ones suppplied with (any) telescope are often ok-ish. Is there a reasonably priced recommendation that gives a lot of bang for the buck? I know you can get super duper Baader eyepieces, but budget is an issue.
   
   
3. Do I need “Barlows” on the 127 I'm interested in? Barlows are just extension tubes, right?? (Can you stack barlows and eyepieces? or does it just end up looking like this http://www.whattofix.com/images/TelescopeMan.jpg ??)
   
4. Where can I get a power pack for the 127?
   

I have found SGL super super helpful in helping me decide to buy my new scope- from First Light Optics! Just need to tweak the requirements s'all. Very much looking forward to your responses!