I've got a couple of topics I'd like some advice on please. I have a Skywatcher BK1309 reflector and have already started to upgrade the standard equipment that came with it. I purchased a couple of Celestron X-Cel eyepieces (12mm and 25mm) to replace the stock ones. They are excellent and I'm glad I got them. I am now looking to buy a nice Barlow and am probably going to get the X-Cell model as well. I can only afford one for now, so should I get the 2x or 3x to begin with? What are the advantages of one over the other?
I also think I should perhaps look to upgrade the red dot finder which came with my telescope. Is this actually worthwhile? I am looking at the Sky-Watcher 9x50 Finderscope. Will this make a big difference? The price is good (£39 from FLO), so I think its a small price to pay if it actually out performs my red dot finder. Perhaps there is another finder scope out there which is better than this though for about the same price? Any recommendations are appreciated.