thinking of upgrading my box from a tm6800 to either a vu solo or a spider 9000.the price is similar,and i have seen what the spider opens and its impressive.the vu specs suggest it to be a much more powerful machine but satellite tv wise is it any more able than a spider and is the technical knowledge needed a huge stepup on a spider.dont know which way to go for the best,can only afford one.i would like both so a could use spider whilst learning the vu,but thats a dream.any help please