Bobby, the top two on my list would be
Five Dimes
and
Bet365USA.com
Five Dimes has good coverage of the four main Tours - PGA, European, Senior PGA and LPGA - for matchups every week, while Bet365USA.com (or just Bet365.co.uk in the UK) has a smaller number of matchups just has good coverage for outrights with five places being paid on each Tour. Both have signed up with Neteller and PayPal so transferring funds is straightforward.
Others that I like, but with the primary problem being transferring funds, are
BetandWin
and
NetBetSports
BetandWin took over Simon Bold and inherited their golf linemaker. They now offer matchups for all four Tours and are very unique! Lots of value to had with them. NetBetSports only offer outrights, but do so for all four Tours and offer six places, albeit at 1/5 rather than 1/4 odds. The main drawbacks with these two books are that the only easy way to deposit funds with them is via credit card (or debit card for NetBetSports for UK punters). That can be a problem transferring funds from one place to another from week to week.
Other to mention are
Ladbrokes,
William Hill and
Centrebet, who offer some attractive odds for these Tours (Ladbrokes do not cover Seniors golf), but do not take custom from US citizens.
Finally,
Sportsinteraction do offer outright odds for these four Tours, though only four places and they have signed up with PayPal, though not Neteller. They do not have a great reputation for customer service though.
Hope this helps