Given that you are based in the UK like me hopefully means that some local knowledge might be useful here. I'd say your coffee usage is low (nothing wrong with that - quality over quantity
You have mentioned the Silvia. It has it is knockers and detractors but it also has a legion of fans and there is much material out there for you to learn and benchmark from. It can produce excellent shots and can steam brilliantly once you get the hang of it. It is well made, good capacity and has established a track record. My brother in law has one, has similar needs as yours, and loves it. I have used it a number of times and it does what it does well. Is it fully priced? At £389 from http://www.myespresso.co.uk, for eg, I think it is, but not overpriced.
Other alternative machines in this class that are readily available here include the Gaggia Classic. Also has plenty of fans. It is smaller than the Silvia in terms of boiler capacity which means faster warm up but also less steaming capacity. But it is also £100 cheaper and would cover your steam needs I would have thought.
HB members in the US frequently mention Lelit machines as very good, alternative machines to the above with good results, but they hard to source in Europe and the UK, even though they originate in Europe. I dont know of a supplier who sells them here, almost as if Lelit are are concentrating on the North American market only.
Other machines in this class that are generally available include the Ascaso Arc (not impressed with the Ascaso range of machines - overpriced and underspec'd) and La Pavoni pump machines (lower quality and much less known than either the Silvia or the Gaggia Classic pump machines IMO).
But you will also see La Pavoni manual lever machines within your price range as you search. These sort of machines I love and is what made La Pavoni famous in espresso circles, but if you are producing latte style drinks only, then I dont think I could recommend these as practical options for you. They are at their best in a producing 1 or 2 espressi only, without milk.
For grinders, the Mahlkonhig Vario instantly springs to mind, coming in at over £300 at http://www.bellabarista.com That would be my grinder of choice - loads of info on this. Other viable options are the Rancilio Rocky, the Mignon, Iberital IC2, Gaggia MDF or La Pavoni Jolly - but given the well reported abilities of the Vario it stands out as exceptional. Alternatively, a high quality hand grinder such as the Porlex, Kyocera or a restored vintage one from http://www.orphanespresso.com could be viable. Their grinding ability can be excellent and very cost efficient, although very slow (takes about 100 to 150 'turns' to grind 14 grams for eg). But given your volume requirements this may be viable.
Dont forget you will need accessories like a tamper (dont go overboard here) and a steaming jug.
UK retailers I would suggest you try include http://www.myespresso.co.uk; http://www.bellabarista.com, http://www.coffeehit.co.uk or http://www.happydonkey.co.uk for your equipment. I have used them all and they have been reliable. You might be able to negotiate. No harm in trying. Of course you can chance your arm on higher end used HX or double boiler machines via ebay, but perhaps this could a future step up in your espresso journey and not appropriate for you now.
Good quality coffee can be obtained from http://www.hasbean.co.uk; http://www.squaremilecoffee.com or http://www.londiniumespresso.com
Good luck!




