RITAHEED - seeing that you havent really emphasized on sound QUALITY being of an extremley high importance then in all honesty just go for the ultralite or RME fireface.. it makes sense for you to do that if you get where im comin from mate.. what MACHINA has pointed out above is very true. you'll save alot of money and probably never really worry about the differance. The Ultralite is there newest interface and will have conseqeuntly less problems(i hope) though i have heard from at leat 4 sources that there are still problems with it!! The fireface is in MY opinion your best option! good luck matey!