Good advice so far.
I would like to add
1..... add a link from the DJsUnited site to yours.
The DJU site has thousands of hits per week / day / month - and it will go towards increasing your own web sites 'gradual' climb up the 'ladder'.
2.... Have you done any free / charity work yet???
As long as you are allowed to distribute your own 'cards' - why not make yourself available, to 'spread' your name around.
Without trying to make it sound as if you are desperate when you get a phone call enquiry, you need to demonstrait to 'clients' that you know what you are about and are positive - without 'umming' and 'errring' too much!
Apart from hotels, define exactly what sort of venue and client you are prepared to work for....Working Man's Clubs Circuit, Village Hall, Pub, Schools, etc.
3.... If you have a fee per hour or quote a fee - be proud, but try to be to the point.
Get the general details straight before you quote -
Type of Function - (have you experience of this type of gig?)
Date and times of function - (are you available?)
Amount of guests - (what do you supply - a large or small setup/sound system)
Venue Location and access / times - (local or distant location - will you travel, stage, tables available, stairs, lift, trolly required, carpark available, parking meters????)
4.... Like Spindoctor recently posted (else where) - if you are willing to do the footwork and drop a card in to such places - you may get a call, maybe not straight away - but you need to be known - else, no one will contact.
5.... More about Prices - exactly how experienced are you? Do you have experience of Weddings, Birthday, Corporate and Childrens parties?
Do you have the Public Liability Insurance and Portable Appliance Tested equipment?
If you have all this - it's a selling point for you. But if not - life isn't over!!
There are posts on the forum regarding PLI and PAT tests - check them out!
Like the old saying "You can't run before you can walk", and to 'compete' with existing and established Disco services will be harder....they have a portfolio and are more 'established'.
You can't beat word of mouth - but people will need to know of your existance!
It's a longshot - but if you are willing to be shown the 'ropes' by an established agent who is also willing to 'mould' you into their type of DJ...no disrespect to agencies - but they all want quality top DJs to supply to clients - make yourself known to them and show availability for work with a willingness to learn. You will learn all the time, you may even enjoy it!!!
6.... Check the DJU map. Who is the nearest member to you? If you are available for work - ask the DJ if they need any 'roadie' assistance. It's one way of getting a feel for a gig and learning, but always remember, if invited, to respect the working code of conduct of the working DJ - it's their 'patch' and 'reputation'!!!!!!
Good luck - keep us posted on how you get on.