diff --git a/app.rb b/app.rb
index 1286244..66279de 100644
--- a/app.rb
+++ b/app.rb
@@ -4,6 +4,12 @@ require 'sinatra-helpers/haml/partials'
 require 'haml'
 require 'lib/models'
 
+helpers do
+  def commify(amount)
+    amount.to_s.gsub(/(\d)(?=(\d{3})+$)/,'\1,')
+  end
+end
+
 get '/' do
   @directorates = Directorate.all( :order => ['name'] )
   @results = repository(:default).adapter.query("SELECT COUNT(*) FROM payments")
@@ -67,6 +73,12 @@ get '/services/:slug.csv' do
   
 end
 
+get '/services/:slug.json' do
+  @service = Service.first(:slug => params[:slug])
+  headers "Content-Type" => "application/json"
+  @service.to_json(:relationships => { :payments => { :include => :all }, :directorate => { :include => :all } })
+end
+
 get '/services/:slug' do
   @service = Service.first(:slug => params[:slug])
   @total = @service.payments.sum(:amount)
diff --git a/lib/models.rb b/lib/models.rb
index b3671f9..6a5f2d9 100644
--- a/lib/models.rb
+++ b/lib/models.rb
@@ -3,6 +3,7 @@ require 'dm-core'
 require 'dm-validations'
 require 'dm-timestamps'
 require 'dm-aggregates'
+require 'dm-serializer'
 
 SITE_URL = 'http://armchairauditor.co.uk/'
 
diff --git a/views/payment.haml b/views/payment.haml
index 5222522..9bfeb6e 100644
--- a/views/payment.haml
+++ b/views/payment.haml
@@ -22,7 +22,7 @@
           = @payment.supplier.name
     %tr
       %td Amount £
-      %td= sprintf("%0.2f", @payment.amount)
+      %td= commify(sprintf("%0.2f", @payment.amount))
 .clear
 <div class="grid_9 noprint">
 = haml_partial "comment_header"
diff --git a/views/service.haml b/views/service.haml
index 513adcf..0b2d8c7 100644
--- a/views/service.haml
+++ b/views/service.haml
@@ -34,11 +34,11 @@
       %th.right Average
 
     %tr
-      %td.right= @count
-      %td.right= sprintf("&pound;%0d", @total)
-      %td.right= sprintf("&pound;%0d", @max)
-      %td.right= sprintf("&pound;%0d", @min)
-      %td.right= sprintf("&pound;%0d", @avg)      
+      %td.right= commify(@count)
+      %td.right= commify(sprintf("&pound;%0d", @total))
+      %td.right= commify(sprintf("&pound;%0d", @max))
+      %td.right= commify(sprintf("&pound;%0d", @min))
+      %td.right= commify(sprintf("&pound;%0d", @avg))
 
   %p
   
@@ -54,7 +54,7 @@
         %td
           %a{ :href => "/suppliers/#{row['supplier_slug']}" }
             = row['supplier_name']
-        %td.right= sprintf("%0d", row['total'])
+        %td.right= commify(sprintf("%0d", row['total']))
         %td.right= sprintf("%0.1f", row['total'] / @total * 100)
 
   %p
@@ -77,14 +77,14 @@
         %td
           %a{ :href => '/suppliers/' + payment.supplier.slug }
             = payment.supplier.name
-        %td.right= sprintf("%0d", payment.amount)
+        %td.right= commify(sprintf("%0d", payment.amount))
     
     %tr
       %td
       %td
       %td
         %strong TOTAL
-      %td.right= sprintf("%0d", @total)
+      %td.right= commify(sprintf("%0d", @total))
   
 .clear
 <div class="grid_9 noprint">
diff --git a/views/supplier.haml b/views/supplier.haml
index 24361e5..ecf052e 100644
--- a/views/supplier.haml
+++ b/views/supplier.haml
@@ -29,11 +29,11 @@
       %th.right Average &pound;
 
     %tr
-      %td.right= @count
-      %td.right= sprintf("%0d", @total)
-      %td.right= sprintf("%0d", @max)
-      %td.right= sprintf("%0d", @min)
-      %td.right= sprintf("%0d", @avg) 
+      %td.right= commify(@count)
+      %td.right= commify(sprintf("%0d", @total))
+      %td.right= commify(sprintf("%0d", @max))
+      %td.right= commify(sprintf("%0d", @min))
+      %td.right= commify(sprintf("%0d", @avg))
       
   %h3 Payments from the Council
   
@@ -57,7 +57,7 @@
         %td
           %a{ :href => '/services/' + payment.service.slug }
             = payment.service.name
-        %td.right= sprintf("%0d", payment.amount)
+        %td.right= commify(sprintf("%0d", payment.amount))
     
     %tr
       %td
@@ -65,7 +65,7 @@
       %td
       %td
         %strong TOTAL
-      %td.right= sprintf("%0d", @total)
+      %td.right= commify(sprintf("%0d", @total))
       
 .clear
 <div class="grid_9 noprint">