I agree with Geeg, not that I have ever taken an EN course, but I know a few that have.
There is a lot to be said for a new tech starting out into the nail biz to actually go for having a real live class scenario.
You can never learn the exact way to do nails from using a nail trainer alone - they are a very good training tool, but they will not help you if you file too hard for instance - they cannot say 'Ouch' that burns!
Also, they do not really show what a 'real' nail is like. But they are good for practising your products/designs skills etc on.
I would suggest you ring around the nail companies who do offer training - I chose CND - available from Sweet Squared - call them on 0845 210 6060 and ask the for their training brochure.
There are other companies too who give good quality 'class room based' training, such as NSI & Ezflow - search on here for their contact details.
It's very easy to be eager and take the first thing that you can, but, by coming on this wonderful site & asking the opinions of well trained professionals you will get lots of feedback & will be able to make a discerned choice given the options available to you. Keep on saving your money & ask all the nail companies about their courses & their customer service, aftercare advice etc.
What you get for your money is all important in these hard times & i would wholeheartedly recommend you to research it well. Here speaks the voice of experience - my initial nail course cost me over £400 almost 7 years ago and wasn't worth the paper it was written on unless that was 'how to create total nail destruction with a 80 grit file'!!!!
Just be sure that whom ever you do choose offers a training programme that is accredited by an insurance company - such as The Beauty Guild - have a look at their accredited companies here....
Beauty Guild : Training Directory - Beauty Guild
That way you can be sure you are covered by insurance once you finally get to work on the paying public.
Good luck with it & don't forget to keep on Geeking xxxx