Deposit
Yes, cheques are acceptable. The deposit is 10% of the sale price. My advice to my clients is to fix their maximum price and stick with it. Make sure they have funds available to cover 10% of that.
Up to recently, at auction, the best advice to a client was to sit at the back to observe what was happening, sit on their hands and say nothing, at all. If the price went out of their reach they had lost nothing. If no-one bid at all, they sat on their hands and waited for the auctioneer to withdraw and then made a bid well below the AMV and at a figure which they felt the vendor was unlikely to sell at. At least the auctioneer then knew there was someone in the crowd interested and with whom they would negotiate. Mind you that advice is being given to everyone else so if there is a real auction situation, that will kickstart it.
The guys who buy successfully at auction are those for whom money is not a problem. The most professional guys sit and wait for everyone else to tire themselves out with creeping bids ( now gratefully accepted by the weary auctioneer) and just when its becoming clear that A is seeing off B, the end is nigh, C nonchalantly blows both out of the water. It is painful to watch as an observer and even more painful if you are either A or B. I went through a phase of being B before retiring bloodied and wounded from the fray and extending and renovating our own house.
mf